What is the normal range for free PSA by age?

Free PSA is most commonly expressed as a percentage of total PSA (% free PSA), and the interpretation depends on age and total PSA level. There is no single universal normal — but the key threshold used clinically is 25%: above 25% is generally associated with lower cancer probability; below 10% is associated with substantially elevated risk. Age matters: for men aged 60–69 with 12% free PSA, cancer probability is approximately 34%; for men aged 50–59, approximately 27%. Always interpret alongside total PSA and DRE findings.

What does "PSA free 14L" mean?

"PSA free 14L" means your % free PSA is 14%, and the "L" indicates it is flagged as Low by the lab — below their reference range cutoff. A % free PSA of 14% is in the mildly-to-moderately reduced range. For men with total PSA in the 4–10 ng/mL range, 14% falls in the intermediate-elevated risk zone. Discuss this result with your urologist, who will consider it alongside total PSA, age, DRE, and prior PSA history.

What does "PSA free 20L" mean?

"PSA free 20L" means your % free PSA is 20%, flagged as Low. At most labs that use 25% as the lower reference limit, 20% is below the threshold — hence the Low flag. In the context of total PSA 4–10 ng/mL, a 20% free PSA is in the intermediate zone, with cancer probability roughly 18–24% depending on age. This typically warrants urologist evaluation and discussion of monitoring vs. further workup.

What does "PSA free 17" or "PSA free 18" mean?

A % free PSA of 17% or 18% is in the intermediate range — above the highest-risk ≤10% threshold but below the reassuring 25% benchmark. For men with total PSA 4–10 ng/mL in their 60s, this corresponds to roughly 30–34% cancer probability. These values typically prompt urologist review, often alongside PSA trends, DRE findings, and consideration of prostate MRI.

What does "PSA free 25L" mean?

"PSA free 25L" means % free PSA is 25% and is flagged Low by the lab. Some labs use >25% as the lower reference limit, making 25% exactly at the boundary — hence the Low flag. Clinically, 25% free PSA is the commonly used threshold: results at or just below this level have approximately 12–16% cancer probability in the 60–69 age group, which is relatively low compared to results below 10%. Discuss with your urologist whether monitoring is appropriate.

What is the difference between free PSA and total PSA?

Total PSA measures the sum of all PSA in the blood — both bound (attached to proteins) and free (unbound). Free PSA measures only the unbound fraction. % free PSA expresses free PSA as a percentage of total PSA. Importantly, a low total PSA does not mean % free PSA is also low — these are different measurements. Cancer typically produces more bound PSA, lowering the free fraction even if total PSA is only mildly elevated.

What does PSA free PCT mean?

"PSA free PCT" is a lab abbreviation for "PSA free percent" — the same measurement as % free PSA. "PSA free PCT low" means the percentage is below the lab's reference range, which in this context is associated with higher cancer probability, not lower.

How is % free PSA calculated?

% free PSA is calculated by dividing the free PSA concentration (in ng/mL) by the total PSA concentration (in ng/mL), then multiplying by 100: % Free PSA = (Free PSA ÷ Total PSA) × 100 Example: Free PSA 0.3 ng/mL ÷ Total PSA 2.0 ng/mL × 100 = 15% free PSA. The lab performs this calculation automatically when both free and total PSA are ordered on the same sample. If your report shows "PSA, % Free (Calc)" this means the percentage was calculated from separately measured values rather than a direct assay. The result and interpretation are the same either way.

What does PSA free 0.1 or PSA free 0.3 mean?

These are absolute free PSA values in ng/mL — the actual concentration of unbound PSA, not the percentage. To calculate % free PSA, divide by total PSA and multiply by 100. For example: free PSA 0.3 ng/mL ÷ total PSA 3.0 ng/mL × 100 = 10% free PSA. The absolute free PSA value alone is not interpretable without total PSA — you need the ratio.

At what % free PSA should I consider a biopsy?

There is no single universal threshold — the decision involves % free PSA, total PSA, age, DRE findings, family history, symptoms, patient preference, and prior PSA trends. As a general guide: below 10% with total PSA 4–10 ng/mL typically prompts biopsy discussion; above 25% often supports deferring biopsy with continued monitoring. The 10–25% zone requires individualised clinical judgment. Prostate MRI is increasingly used before biopsy to identify lesions worth targeting.

What does serbest PSA / PSA total oranı mean? (Turkish)

"Serbest PSA/total PSA oranı" is the Turkish term for the free PSA/total PSA ratio (% free PSA). Normal değeri (normal value) için genel eşik: %25'in üzerinde daha düşük kanser riski; %10'un altında daha yüksek kanser riski. Sonuçlar her zaman üroloji uzmanı eşliğinde değerlendirilmelidir.

What does free PSA / PSA libre / PSA libre total mean? (Spanish)

"PSA libre/PSA total" is the Spanish term for the free/total PSA ratio — the same measurement as % free PSA. The normal range thresholds are the same: above 25% is generally associated with lower cancer probability; below 10% with significantly elevated risk in the gray zone of total PSA 4–10 ng/mL.

Free PSA Normal Range by Age: Low % Free PSA & What Results Mean

Serum Plasma

Other names: PSA % Free, PSA, % Free, PSA Free, PSA Free Percentage, PSA Free PCT, PSA Free PCT Low, PSA Free Normal Range, Free PSA, Free PSA Percentage, % Free PSA, Percent Free PSA, Free/Total PSA Ratio, PSA Free/Total Ratio, PSA Free and Total, PSA Free 14L, PSA Free 17, PSA Free 18, PSA Free 20L, PSA Free 25L, PSA Free 0.1, PSA Free 0.3, PSA Free 0.4, PSA Free Low, PSA Free High, PSA, FREE, PSA % Free (Calc), PSA Free %, PSA % Free Low, PSA Percent Free, Free PSA Index, F-PSA, fPSA, PSA Libre (Spanish), PSA Liber (Romanian), Serbest PSA (Turkish), PSA Libero (Italian), PSA Libre/PSA Total (Spanish ratio), Raport PSA Liber/PSA Total (Romanian)

Optimal Result: 25 - 100 %.

Tumor / Cancer screening tests

From Healthmatters.io Team and reviewed by HM Editorial Team

Written on May 18, 2026 | Last updated Updated on May 18, 2026

Lab Results Explained and Tracked

AT A GLANCE

% Free PSA = (Free PSA ÷ Total PSA) × 100 — the percentage of total PSA that is not bound to blood proteins
Low % free PSA is the concerning finding — counterintuitively, a lower percentage suggests higher cancer probability
Above 25% — generally associated with lower cancer probability; often reassuring in the context of total PSA 4–10 ng/mL
Below 10% — associated with substantially elevated cancer probability in the same total PSA range
The test is most useful when total PSA is 4–10 ng/mL (the "gray zone") — at very low total PSA, the percentage may not be clinically meaningful
A "Low" (L) flag on your free PSA result does not mean your PSA number is low — it means your % free PSA is below the lab's reference range, which may indicate increased cancer risk
Free PSA is different from total PSA — free PSA measures just the unbound fraction; total PSA is the sum of all forms
Interpret all results alongside total PSA, age, DRE findings, family history, and prior PSA trends.

% FREE PSA AT A GLANCE: WHAT DOES YOUR NUMBER MEAN?

% Free PSA	Cancer probability estimate	Risk interpretation	Typical next step
> 25%	~9–16% (age-dependent)	Lower cancer probability	Active monitoring; biopsy often deferred
18–25%	~18–30%	Intermediate	Urologist review; MRI often considered
10–17%	~30–40%	Elevated concern	Urologist referral; biopsy discussion
< 10%	~50–65%	High concern	Urologist referral; further workup typically warranted

Valid when total PSA is 4–10 ng/mL. Below this total PSA range, % free PSA is less clinically reliable.

There is no single universal normal value for % free PSA. The percentage must be interpreted alongside total PSA level and age. The following thresholds are the most widely used in clinical practice:

% Free PSA Interpretation (when Total PSA is 4–10 ng/mL)

% Free PSA	Cancer risk estimate	Clinical guidance
> 25%	~8–16%	Generally lower risk; biopsy often deferred
10–25%	~18–34%	Intermediate; decision depends on age, DRE, and other factors
< 10%	~50–65%	Substantially elevated risk; urologist referral and biopsy discussion typically warranted

Age-specific cancer risk by % free PSA (Men with total PSA 4–10 ng/mL and non-suspicious DRE — Roche E602 immunoassay system)

% Free PSA	Age 50–59	Age 60–69	Age ≥70
≤10%	49.2%	57.5%	64.5%
11–18%	26.9%	33.9%	40.8%
19–25%	18.3%	23.9%	29.7%
>25%	9.1%	12.2%	15.8%

Key observations from this table:

At the same % free PSA, cancer risk increases with age
A 70-year-old with 12% free PSA has roughly the same cancer probability as a 60-year-old with 9% free PSA
A result above 25% in a 60-year-old carries ~12% cancer probability — not zero, but substantially lower than at ≤10%

These are probability estimates, not certainties. A positive biopsy can occur at any % free PSA level.

WHAT DO "PSA FREE 14L," "PSA FREE 17," "PSA FREE 20L" MEAN?

Many lab reports express free PSA as a percentage, and some flag results below a reference threshold with an "L" (Low) designation. This is a common source of confusion.

What the "L" flag means: On lab reports and online portal displays like LabCorp and Quest, "L" after a PSA result means the value is below the lab's reference range for that measurement — it does not mean the absolute PSA number is low. For % free PSA, a LOW flag means the percentage is below the lower reference limit, which in clinical context means the free PSA proportion is reduced — the pattern associated with higher cancer risk.

Common lab report formats and what they mean:

PSA FREE 14L     = Free PSA is 14% — flagged Low (below reference range)
PSA FREE 17      = Free PSA is 17% — may or may not be flagged depending on lab
PSA FREE 18      = Free PSA is 18% — borderline; interpret with total PSA and age
PSA FREE 20L     = Free PSA is 20% — flagged Low at some labs (cutoff >25%)
PSA FREE 25L     = Free PSA is 25% — flagged Low at labs using higher cutoff
PSA FREE PCT     = Free PSA percent (same measurement)
PSA FREE PCT LOW = % free PSA below lab reference range
PSA, % FREE      = Standard LabCorp label for % free PSA
PSA % FREE (CALC) = Calculated from separately measured free and total PSA values
FREE/TOTAL PSA RATIO = Same measurement expressed as a decimal (e.g., 0.14 = 14%)

What specific percentages mean:

% Free PSA	Typical interpretation in gray-zone total PSA (4–10 ng/mL)
14%	Mildly-moderately reduced; intermediate-elevated cancer risk; discuss biopsy decision with urologist
17%	Intermediate; elevated risk relative to >25% benchmark
18%	Intermediate; discuss clinical context, age, and DRE with urologist
20%	Lower end of intermediate; may be flagged Low depending on lab cutoff
25%	At the commonly used 25% threshold; approximately 12% cancer probability in 60–69 age group

WHAT TO DO NEXT

Based on your % free PSA result (when total PSA is 4–10 ng/mL):

Above 25%, non-suspicious DRE, stable total PSA — Generally lower cancer probability. Many urologists would defer immediate biopsy and monitor PSA trends every 6–12 months. Shared decision-making with your urologist is appropriate.
10–25%, total PSA 4–10 ng/mL — Intermediate risk. Clinical decision-making should incorporate age, DRE findings, family history, PSA velocity, and patient preference. MRI before biopsy is increasingly used in this zone to identify lesions worth targeting.
Below 10%, total PSA 4–10 ng/mL — Substantially elevated cancer risk. Urologist referral and biopsy discussion are typically appropriate. A prostate MRI may help characterise any lesions and guide targeted biopsy.
Result flagged "Low" (L) on your lab report — This means your % free PSA is below the reference range, consistent with the lower end of the spectrum. The clinical significance depends on your total PSA, age, and DRE. Discuss with your doctor.
Low % free PSA with normal total PSA (below 4 ng/mL) — Less common pattern. May represent early-stage cancer, biological variation, or assay variability. Warrants clinical assessment rather than immediate biopsy — repeat testing, MRI, or urologist evaluation is appropriate.
% free PSA result when total PSA is below 2 ng/mL — At very low total PSA levels, the free PSA percentage calculation may not be clinically meaningful. Interpret with caution.
High % free PSA (above 25%) — Generally reassuring. Suggests benign prostate enlargement (BPH) is a more likely cause of PSA elevation than cancer. Biopsy may reasonably be deferred; continue routine monitoring.

FREE PSA vs TOTAL PSA: WHAT'S THE DIFFERENCE?

PSA (prostate-specific antigen) circulates in the blood in two forms:

	Total PSA	Free PSA	% Free PSA
What it measures	Sum of all PSA forms	PSA circulating unbound	Free PSA as % of total
Units	ng/mL	ng/mL	%
Cancer signal direction	High = more concerning	Low free fraction = concerning	Low % = more concerning
Most useful range	All PSA levels for initial screening	In combination with total PSA	Total PSA 4–10 ng/mL

Why free PSA matters: Prostate cancer cells produce more PSA that binds tightly to blood proteins (primarily alpha-1-antichymotrypsin). Benign prostate tissue releases more unbound, free PSA. This means:

Cancer → more bound PSA → lower % free PSA
BPH → more free PSA → higher % free PSA

The % free PSA calculation exploits this difference to improve discrimination between cancer and benign disease in the gray zone where total PSA alone cannot reliably distinguish the two.

WHAT DOES LOW % FREE PSA MEAN?

A low % free PSA — below 10–15%, depending on the lab and clinical context — means a smaller proportion of your total PSA is circulating free (unbound). This pattern is more commonly seen with prostate cancer than with benign prostate conditions.

Important clarification: "Low free PSA" in the clinical sense means a low percentage, not a low absolute number. If your report says "PSA Free 0.3 ng/mL" with a total PSA of 3.0 ng/mL, the % free PSA is 10% — which is low as a ratio even though the absolute value 0.3 looks small.

What to do with low % free PSA:

Discuss the finding with your urologist alongside total PSA, age, DRE, and prior PSA history
Consider prostate MRI to look for lesions that warrant targeted biopsy
Do not make clinical decisions based on % free PSA alone

WHAT DOES HIGH % FREE PSA MEAN?

A high % free PSA — above 25% — suggests that most of your PSA is circulating in the free (unbound) form. This pattern is more commonly associated with benign prostate conditions such as BPH.

High % free PSA does not rule out prostate cancer entirely — cancer can still be present. But it indicates that the probability is lower than in men with the same total PSA and a lower % free PSA.

Common causes of high % free PSA:

Benign prostatic hyperplasia (BPH) — the most common cause
Prostatitis or prostate inflammation
Normal variation
Benign prostate disease in general

If total PSA is also elevated alongside a high % free PSA, monitoring rather than immediate biopsy is often the appropriate approach — but always with urologist guidance.

NON-CANCER CAUSES OF ELEVATED TOTAL PSA (CONTEXT FOR % FREE PSA)

Because % free PSA is interpreted alongside total PSA, understanding what raises total PSA matters:

BPH — enlarged prostate produces more PSA
Prostatitis — prostate infection or inflammation raises PSA significantly and transiently
Recent ejaculation — can transiently raise PSA; most guidelines recommend a 24–48 hour abstention before PSA testing
Prostate manipulation — catheterisation, cystoscopy, prostate massage raise PSA
Vigorous cycling — documented to modestly raise PSA through perineal pressure
Urinary tract infection (UTI) — can raise PSA transiently

These non-cancer causes tend to raise both free and bound PSA somewhat proportionally — so % free PSA may be less affected than total PSA by these confounders.

COMMON PHRASES SEEN ON LAB REPORTS

PSA, % FREE
PSA % FREE
PSA, % FREE (CALC)
PSA FREE PCT
PSA FREE PCT LOW
PSA FREE PERCENTAGE
% FREE PSA
PERCENT FREE PSA
FREE PSA
FREE PSA PERCENTAGE
FREE/TOTAL PSA RATIO
PSA FREE/TOTAL RATIO
FREE PSA INDEX
PSA FREE 14L / PSA FREE 14
PSA FREE 17 / PSA FREE 17L
PSA FREE 18 / PSA FREE 18L
PSA FREE 20L / PSA FREE 20
PSA FREE 25L / PSA FREE 25
PSA FREE 0.1 / PSA FREE 0.3 / PSA FREE 0.4  [absolute ng/mL values]
PSA FREE LOW
PSA, FREE   [absolute free PSA in ng/mL — different from % free]
PSA, FREE NG/ML
PSA FREE AND TOTAL
PSA SCORE FREE TOTAL PERCENTAGE
F-PSA / fPSA
PSA LIBRE / PSA LIBRE TOTAL (Spanish)
PSA LIBER / RAPORT PSA LIBER (Romanian)
SERBEST PSA / SERBEST PSA/TOTAL PSA ORANI (Turkish)
PSA LIBERO / PSA LIBERO TOTALE (Italian)
FREE PSA / TOTAL PSA RATIO تحليل (Arabic)

FAQ about PSA, % Free

What is the normal range for free PSA by age?

Free PSA is most commonly expressed as a percentage of total PSA (% free PSA), and the interpretation depends on age and total PSA level. There is no single universal normal — but the key threshold used clinically is 25%: above 25% is generally associated with lower cancer probability; below 10% is associated with substantially elevated risk. Age matters: for men aged 60–69 with 12% free PSA, cancer probability is approximately 34%; for men aged 50–59, approximately 27%. Always interpret alongside total PSA and DRE findings.
What does "PSA free 14L" mean?

"PSA free 14L" means your % free PSA is 14%, and the "L" indicates it is flagged as Low by the lab — below their reference range cutoff. A % free PSA of 14% is in the mildly-to-moderately reduced range. For men with total PSA in the 4–10 ng/mL range, 14% falls in the intermediate-elevated risk zone. Discuss this result with your urologist, who will consider it alongside total PSA, age, DRE, and prior PSA history.
What does "PSA free 20L" mean?

"PSA free 20L" means your % free PSA is 20%, flagged as Low. At most labs that use 25% as the lower reference limit, 20% is below the threshold — hence the Low flag. In the context of total PSA 4–10 ng/mL, a 20% free PSA is in the intermediate zone, with cancer probability roughly 18–24% depending on age. This typically warrants urologist evaluation and discussion of monitoring vs. further workup.
What does "PSA free 17" or "PSA free 18" mean?

A % free PSA of 17% or 18% is in the intermediate range — above the highest-risk ≤10% threshold but below the reassuring 25% benchmark. For men with total PSA 4–10 ng/mL in their 60s, this corresponds to roughly 30–34% cancer probability. These values typically prompt urologist review, often alongside PSA trends, DRE findings, and consideration of prostate MRI.
What does "PSA free 25L" mean?

"PSA free 25L" means % free PSA is 25% and is flagged Low by the lab. Some labs use >25% as the lower reference limit, making 25% exactly at the boundary — hence the Low flag. Clinically, 25% free PSA is the commonly used threshold: results at or just below this level have approximately 12–16% cancer probability in the 60–69 age group, which is relatively low compared to results below 10%. Discuss with your urologist whether monitoring is appropriate.
What does low % free PSA mean?

Low % free PSA means a smaller proportion of your total PSA is circulating unbound. This pattern is associated with higher prostate cancer probability because cancer cells tend to produce more protein-bound PSA. The "Low" designation on your lab report confirms the percentage is below the reference range — not that your PSA is numerically low. A low % free PSA, particularly below 10%, in the context of total PSA 4–10 ng/mL often warrants a conversation with a urologist about further evaluation.
What is the difference between free PSA and total PSA?

Total PSA measures the sum of all PSA in the blood — both bound (attached to proteins) and free (unbound). Free PSA measures only the unbound fraction. % free PSA expresses free PSA as a percentage of total PSA. Importantly, a low total PSA does not mean % free PSA is also low — these are different measurements. Cancer typically produces more bound PSA, lowering the free fraction even if total PSA is only mildly elevated.
What does PSA free PCT mean?

"PSA free PCT" is a lab abbreviation for "PSA free percent" — the same measurement as % free PSA. "PSA free PCT low" means the percentage is below the lab's reference range, which in this context is associated with higher cancer probability, not lower.
How is % free PSA calculated?

% free PSA is calculated by dividing the free PSA concentration (in ng/mL) by the total PSA concentration (in ng/mL), then multiplying by 100: % Free PSA = (Free PSA ÷ Total PSA) × 100 Example: Free PSA 0.3 ng/mL ÷ Total PSA 2.0 ng/mL × 100 = 15% free PSA. The lab performs this calculation automatically when both free and total PSA are ordered on the same sample. If your report shows "PSA, % Free (Calc)" this means the percentage was calculated from separately measured values rather than a direct assay. The result and interpretation are the same either way.
What does PSA free 0.1 or PSA free 0.3 mean?

These are absolute free PSA values in ng/mL — the actual concentration of unbound PSA, not the percentage. To calculate % free PSA, divide by total PSA and multiply by 100. For example: free PSA 0.3 ng/mL ÷ total PSA 3.0 ng/mL × 100 = 10% free PSA. The absolute free PSA value alone is not interpretable without total PSA — you need the ratio.
At what % free PSA should I consider a biopsy?

There is no single universal threshold — the decision involves % free PSA, total PSA, age, DRE findings, family history, symptoms, patient preference, and prior PSA trends. As a general guide: below 10% with total PSA 4–10 ng/mL typically prompts biopsy discussion; above 25% often supports deferring biopsy with continued monitoring. The 10–25% zone requires individualised clinical judgment. Prostate MRI is increasingly used before biopsy to identify lesions worth targeting.
What does serbest PSA / PSA total oranı mean? (Turkish)

"Serbest PSA/total PSA oranı" is the Turkish term for the free PSA/total PSA ratio (% free PSA). Normal değeri (normal value) için genel eşik: %25'in üzerinde daha düşük kanser riski; %10'un altında daha yüksek kanser riski. Sonuçlar her zaman üroloji uzmanı eşliğinde değerlendirilmelidir.
What does free PSA / PSA libre / PSA libre total mean? (Spanish)

"PSA libre/PSA total" is the Spanish term for the free/total PSA ratio — the same measurement as % free PSA. The normal range thresholds are the same: above 25% is generally associated with lower cancer probability; below 10% with significantly elevated risk in the gray zone of total PSA 4–10 ng/mL.

Lab Results Explained and Tracked

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What does it mean if your PSA, % Free result is too high?

A high % free PSA — generally above 25% — suggests that most of your PSA is circulating in the free, unbound form. This is more consistent with benign prostate conditions than with cancer.

What high % free PSA means clinically:

In the gray zone of total PSA 4–10 ng/mL, a % free PSA above 25% is associated with a cancer probability of approximately 9–16% depending on age. This is substantially lower than the 50–65% probability seen at ≤10% free PSA. Many urologists interpret a high % free PSA as reason to defer biopsy and continue active PSA monitoring.

Reassurance, with caveats: High % free PSA does not rule out prostate cancer. Cancer can be present at any % free PSA level. A high percentage simply shifts probability toward a benign cause. Ongoing PSA monitoring, DRE, and age-appropriate screening remain appropriate.

Common causes of high % free PSA: BPH (most common), prostatitis, prostate inflammation, and normal variation in men with benign prostate disease.

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What does it mean if your PSA, % Free result is too low?

A low % free PSA — particularly below 10%, and to a lesser extent 10–25% — is the clinically concerning finding. It means a smaller proportion of your PSA is unbound, a pattern more commonly seen with prostate cancer than benign conditions.

Important clarification about the "Low" flag: If your lab report shows "L" next to the free PSA result (e.g., "PSA FREE 14L"), this means the percentage is below the lab's reference range cutoff — not that your PSA number itself is low. A low % free PSA is associated with higher cancer probability, not lower.

Interpreting your result:

In men with total PSA 4–10 ng/mL:

% free PSA ≤10%: cancer probability approximately 49–65% (age-dependent)
% free PSA 11–18%: cancer probability approximately 27–41%
% free PSA 19–25%: cancer probability approximately 18–30%
% free PSA >25%: cancer probability approximately 9–16%

Next steps for low % free PSA: Urologist referral is typically appropriate. Prostate MRI, PSA trends, DRE, and shared decision-making about biopsy are the key next steps. The decision is not automatic — many factors influence whether biopsy is right for any individual.

Low % free PSA with normal total PSA: If your total PSA is below 4 ng/mL but % free PSA is still low, this is less commonly evaluated but may warrant monitoring. Very early-stage cancer can occasionally produce this pattern. Repeat testing and urologist evaluation are appropriate.

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What fantastic service and great, easy-to-follow layouts! I love your website; it makes it so helpful to see patterns in my health data. It's truly a pleasure to use. I only wish the NHS was as organized and quick as Healthmatters.io. You've set a new standard for health tracking!

Karin

Advanced Plan Member since 2020

As a PRO member and medical practitioner, Healthmatters.io has been an invaluable tool for tracking my clients' data. The layout is intuitive, making it easy to monitor trends and spot patterns over time. The ability to customize reports and charts helps me present information clearly to my clients, improving communication and outcomes. It's streamlined my workflow, saving me time and providing insights at a glance. Highly recommended for any practitioner looking for a comprehensive and user-friendly solution to track patient labs!

Paul

Healthmatters Pro Member since 2024

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Free PSA Normal Range by Age: Low % Free PSA & What Results Mean

AT A GLANCE

% FREE PSA AT A GLANCE: WHAT DOES YOUR NUMBER MEAN?

WHAT DO "PSA FREE 14L," "PSA FREE 17," "PSA FREE 20L" MEAN?

WHAT TO DO NEXT

FREE PSA vs TOTAL PSA: WHAT'S THE DIFFERENCE?

WHAT DOES LOW % FREE PSA MEAN?

WHAT DOES HIGH % FREE PSA MEAN?

NON-CANCER CAUSES OF ELEVATED TOTAL PSA (CONTEXT FOR % FREE PSA)

COMMON PHRASES SEEN ON LAB REPORTS

FAQ about PSA, % Free

What is the normal range for free PSA by age?

What does "PSA free 14L" mean?

What does "PSA free 20L" mean?

What does "PSA free 17" or "PSA free 18" mean?

What does "PSA free 25L" mean?

What does low % free PSA mean?

What is the difference between free PSA and total PSA?

What does PSA free PCT mean?

How is % free PSA calculated?

What does PSA free 0.1 or PSA free 0.3 mean?

At what % free PSA should I consider a biopsy?

What does serbest PSA / PSA total oranı mean? (Turkish)

What does free PSA / PSA libre / PSA libre total mean? (Spanish)

All Your Lab Results. One Simple Dashboard.

What does it mean if your PSA, % Free result is too high?

Related Health Conditions

All Your Lab Results. One Simple Dashboard.

Import, Track, and Share Your Lab Results Easily

Import, Track, and Share Your Lab Results

What does it mean if your PSA, % Free result is too low?

Related Biomarkers

Article Review & Sources

Bring All Your Lab Results Together — In One Place

Gather Your Lab History — and Finally Make Sense of It

Finally, Your Lab Results Organized and Clear

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What's included in a Healthmatters membership

Import Lab Results from Any Source

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Comprehensive Data Entry Service for Your Reports Data Entry Service for Your Reports

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Let Your Lab Results Tell the Full Story

Once your results are in one place, see the bigger picture — track trends over time, compare data side by side, export your full history, and share securely with anyone you trust.

Bring all your results together to compare, track progress, export your history, and share securely.

What Healthmatters Members Are Saying

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We implement proven measures to keep your data safe.

All Your Lab Results.
One Simple Dashboard.

All Your Lab Results.
One Simple Dashboard.