Optimal Result:
0.57 - 1 mg/dL,
50.39 - 88.4 µmol/L,
or
50.39 - 88.4 umol/L.
Creatinine is a waste product formed when your body breaks down a compound called creatine, which helps supply energy to your muscles. Once produced, creatinine is released into the bloodstream and filtered out by the kidneys, exiting the body in urine.
Because creatinine is removed from the blood by the kidneys, measuring its level is a reliable way to evaluate kidney function.
A creatinine test measures the level of creatinine in your blood or urine. It’s commonly used to assess how well your kidneys are working and may be ordered as a standalone test or as part of a:
Basic Metabolic Panel (BMP)
This test helps screen for, diagnose, or monitor kidney disease and other conditions that affect kidney function.
Your kidneys contain millions of tiny filtering units called nephrons. Each nephron includes a cluster of blood vessels called glomeruli, which filter waste products—including creatinine—from the blood. These waste products then exit your body through urine. When kidney function is impaired, creatinine builds up in the bloodstream.
A creatinine test may be used for:
To detect kidney problems early—before symptoms appear—especially if you’re at high risk (e.g., diabetes, high blood pressure, family history of kidney disease).
To help identify the cause of symptoms such as:
Fatigue or trouble sleeping
Swelling in the face, hands, abdomen, feet, or ankles
Changes in urination (foamy, bloody, or frequent)
Nausea or vomiting
Loss of appetite
High blood pressure
Lower back pain near the kidneys
To track kidney function over time if you have:
Medical conditions or medications that affect kidney function (e.g., certain antibiotics or chemotherapy drugs)
Elevated creatinine may indicate:
Glomerulonephritis (inflammation of kidney filters)
Kidney infections (e.g., pyelonephritis)
Blocked urinary tract (e.g., kidney stones, prostate enlargement)
Heart failure or dehydration
Medication toxicity (e.g., aminoglycosides like gentamicin)
Diabetes-related kidney damage
Normal creatinine levels vary by age, sex, muscle mass, and the lab method used. Here are typical reference ranges:
| Group | Normal Range (Blood) |
|---|---|
| Men | 0.7 – 1.3 mg/dL (61.9–114.9 µmol/L) |
| Women | 0.5 – 1.1 mg/dL (53–97.2 µmol/L) |
Note: Women often have lower creatinine levels than men due to having less muscle mass.
Your test results should always be interpreted by a healthcare provider in the context of your personal health, symptoms, and medical history.
A single creatinine measurement may not tell the full story. It’s often used to calculate:
Estimated Glomerular Filtration Rate (eGFR) – a more accurate measure of kidney filtering function
Creatinine clearance – compares blood and urine creatinine levels to assess how efficiently kidneys clear waste
BUN/Creatinine ratio – can help identify the cause of abnormal kidney function
Even if your creatinine level is "normal," it doesn't always mean your kidneys are perfectly healthy. Early-stage kidney disease may not cause a rise in creatinine. In such cases, your doctor may recommend additional tests like:
Kidney imaging
Always discuss your results with your doctor—they will consider your age, muscle mass, diet, hydration status, and other medical conditions before making a diagnosis.
Your doctor may order a creatinine test if you:
Show symptoms of kidney dysfunction
Have diabetes or high blood pressure
Take medications known to affect the kidneys
Have a family history of kidney disease
Are being monitored for chronic kidney disease (CKD)
Creatinine levels are a vital indicator of how well your kidneys are functioning. While the test is simple, the interpretation requires a detailed understanding of your health status. If your creatinine level is abnormal, further testing may be needed to assess the extent and cause of the problem.
Early detection and management of kidney issues can help prevent serious complications down the line.
Sources & References:
Creatinine is a waste product created by muscle activity and filtered out of the bloodstream by your kidneys. Elevated blood creatinine levels may signal that your kidneys aren’t functioning properly—possibly pointing to acute kidney injury or chronic kidney disease (CKD).
For most adults, normal blood creatinine levels range from 0.7–1.3 mg/dL for men and 0.6–1.1 mg/dL for women, though this can vary slightly by lab.
Your serum creatinine level is used to calculate your estimated glomerular filtration rate (eGFR)—one of the most important indicators of kidney health. As creatinine rises, eGFR tends to fall, suggesting decreased kidney function.
However, your creatinine level can be affected by:
Muscle mass
Age
Sex
Diet and supplements
That means not all high creatinine levels point to kidney disease.
In addition to kidney-related conditions, many common lifestyle and health factors can increase creatinine levels:
Dehydration
Muscle injury or breakdown
Strenuous exercise
High-protein diets or eating a lot of cooked meat
Certain medications (like NSAIDs and some antibiotics)
Creatine supplementation – a widely used fitness supplement that naturally increases serum creatinine levels.
Important: Creatine use can lead to artificially high creatinine levels, even when kidney function is normal. In these cases, your doctor may order a test for Cystatin C, a more accurate kidney function marker that isn’t influenced by muscle mass or diet.
Persistent elevation in creatinine may indicate:
Chronic kidney disease (CKD)
Acute kidney injury (AKI)
Urinary tract obstruction
Heart failure
Kidney complications from diabetes
High blood pressure (hypertension)
Not all elevations are permanent. Temporary increases can be caused by:
Heavy workouts
High-protein meals
Certain medications
Creatine supplements
Pregnancy
These levels often return to normal once the trigger is removed.
Creatinine itself doesn’t usually cause symptoms. But if kidney function is impaired, you might notice:
Swelling (especially in the legs, ankles, or face)
Fatigue
Changes in urination
High blood pressure
Your healthcare provider may recommend:
A repeat blood test
Urine tests
Imaging studies (like ultrasound)
A creatinine clearance test
Cystatin C testing, especially if you're taking creatine or have high muscle mass
Management depends on the cause. Your provider might suggest:
A kidney-friendly diet
Drinking enough fluids (but not too much)
Managing chronic conditions like diabetes and hypertension
Avoiding medications that stress the kidneys
Modifying your workout or supplement routine
High creatinine doesn’t always mean kidney disease. Supplements like creatine, intense workouts, or dehydration can all raise your levels. For the most accurate picture of your kidney health, always talk to your doctor and ask if cystatin C testing is appropriate—especially if you're active or use supplements.
Import lab results from multiple providers, track changes over time, customize your reference ranges, and get clear explanations for each result. Everything is stored securely, exportable in one organized file, and shareable with your doctor—or anyone you choose.
Cancel or upgrade anytime
Low blood creatinine levels are less common than high levels, but they can still offer important clues about your health.
Reduced muscle mass: Conditions such as muscular dystrophy, or the natural loss of muscle that occurs with aging, can lead to lower creatinine levels, since creatinine is produced in the muscles.
Malnutrition or a very low-protein diet: If your body isn't getting enough protein, creatinine production may decrease.
Severe liver disease (rare): Because the liver helps produce creatine, damage to the liver may indirectly reduce creatinine levels.
Pregnancy: It's normal for creatinine levels to be slightly lower during pregnancy, especially in the second and third trimesters, due to increased kidney filtration (GFR).
Increased glomerular filtration rate (GFR): In theory, very low creatinine levels could also indicate an unusually high kidney filtration rate, which can occur in specific physiological states like pregnancy.
While not always a sign of a medical problem, unusually low creatinine may point to:
Muscle-wasting conditions
Nutritional deficiencies
Chronic illness that causes weight or muscle loss
If your creatinine levels are lower than expected, your doctor may evaluate your diet, muscle mass, liver function, and overall health to determine if further testing is needed.
Laboratories
We accept reports from any lab, so you can easily collect and organize all your health information in one secure spot.
Pricing Table
Choose the plan that fits you — and turn scattered lab reports into clear insights you can finally use.
Pick a plan that fits you — and turn scattered lab reports into clarity.
Personal plans
Professional plan
$15/ month
Access your lab reports, explanations, and tracking tools.
$250/ once
Pay once, access everything—no monthly fees, no limits.
Professional plan
$45/ month
Designed for professionals managing their clients' lab reports
About membership
Import Lab Results from Any Source
Easily upload lab results from any provider, whether it's a hospital, independent lab, or home testing service. We support PDFs, scanned documents, and JPEGs from patient portals. No need to log in to multiple platforms — everything is centralized in one secure space.
Easily upload lab results from any provider — we support PDFs, scans, and images. Keep all your reports organized in one secure place.
See Your Health Timeline
Every lab result is automatically organized on a chronological timeline, giving you a complete picture of your health journey. Whether you're tracking a condition, managing treatments, or staying proactive, the timeline helps you and your doctor understand how things progress over time.
Every lab result is automatically organized on a chronological timeline, giving you a complete picture of your health journey.
Understand What Your Results Mean
Whether it's a blood test, GI panel, urinalysis, or something else, lab reports measure numerous biomarkers that reveal what's happening inside your body. Our extensive database covers over 10,000 biomarkers, providing clear, simple explanations of what each result means and how you can take action—no matter your membership level. Say goodbye to confusion and get the insights you need to better understand your health.
Our database covers over 10,000 biomarkers with clear, simple explanations—so you can finally understand your results and what to do next.
Enter Your Lab Reports Yourself — Always Free
Enter Your Lab Reports — Always Free
If you'd like to handle inputting your health data into your account, you can do so with our easy-to-use data entry forms. Our user-friendly form is designed to guide you through the quick and easy submission process, making it simple to keep track of your health metrics. This is available to both Complete plan and Unlimited plan members.
Our user-friendly form guides you through a quick, simple submission process, making it easy to enter your health metrics.
Add your results anytime with our easy entry form. It's quick, guided, and helps you stay organized — free for all members.
Visualize Your Results
View your lab data through easy-to-read graphs and tables. Quickly spot patterns, track changes, and compare results across different dates — all without digging through multiple reports. You can also select and compare graphs of specific biomarkers side-by-side to better understand how they relate and change over time.
See your lab reports in clear graphs and tables. Spot patterns, track changes, and compare results over time — all in one place.
Export Your Complete Lab History in a Single File
Export Your Complete Lab History
After collecting lab results from different providers, you can download your entire history combined into a single file. Choose from PDF, Excel, or CSV formats to easily review, share, or get a second opinion—no more juggling multiple reports.
After collecting lab results from different providers, you can download your entire history combined into a single file.
Comprehensive Data Entry Service for Your Reports
Data Entry Service for Your Reports
Our inclusive service handles the data entry for your lab reports. Just submit your information and we'll take care of the rest. Complete plan members receive one report entered for free, then $15 per report after that. Unlimited plan members receive ten report entries for free, then $15 per report after that.
Our inclusive service handles the data entry for your lab reports. Just submit your information and we'll take care of the rest.
Securely Share With Anyone You Trust
Whether you're working with a doctor, nutritionist, caregiver, or wellness coach, you can securely share your complete lab history by sending an invite link to anyone you trust. You have full control over who sees your information and for how long, ensuring your privacy and peace of mind at every step.
Share your full lab history with your doctor, nutritionist, or coach using a secure invite link.
Discover
I have been using Healthmatters.io since 2021. I travel all over the world and use different doctors and health facilities. This site has allowed me to consolidate all my various test results over 14 years in one place. And every doctor that I show this to has been impressed. Because with any health professional I talk to, I can pull up historical results in seconds. It is invaluable. Even going back to the same doctor, they usually do not have the historical results from their facility in a graph format. That has been very helpful.
Anthony
Unlimited Plan Member since 2021
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
Healthmatters is a personal health dashboard that helps you organize and understand your lab results. It collects and displays your medical test data from any lab in one secure, easy-to-use platform.
With a Healthmatters account, you can:
Professionals can also analyze client data more efficiently and save time managing lab reports.
Healthmatters.io personal account provides in-depth research on 4000+ biomarkers, including information and suggestions for test panels such as, but not limited to:
You can combine all test reports inside your Healthmatters account and keep them in one place. It gives you an excellent overview of all your health data. Once you retest, you can add new results and compare them.
If you are still determining whether Healthmatters support your lab results, the rule is that if you can test it, you can upload it to Healthmatters.
While we work with many popular labs, we welcome reports from lots of other places too.
It's as simple as this: if you can get a test done, you can upload it to Healthmatters and we can interpret results from any lab out there. If laboratories can analyze it, we can interpret it.
If you're on the hunt for a specific biomarker, contact us and we'll add it to our database. Anything from blood, urine, saliva, or stool can be uploaded, understood, and tracked with your Healthmatters account.
The Complete Plan ($15/month) is perfect for individuals who want ongoing access to their health data. It includes unlimited lab imports, visual tracking, custom ranges, result explanations, full account exports, and secure sharing — all with a simple monthly subscription. You can cancel anytime and restart your plan whenever you're ready — your data will still be there waiting for you. You can also upgrade to the Unlimited Plan at any time, with the cost prorated based on what you've already paid.
The Unlimited Plan ($250 one-time) is also designed for individuals but offers lifetime access with no ongoing subscription. You'll get all the same features as the Complete Plan, plus a larger initial data entry allowance (10 reports), making it a great choice if you prefer a one-time payment and long-term use without monthly fees.
In short:
There are two ways to add your test reports to your Healthmatters account. One option is to input the data using the data entry forms. The other method is to utilize our "Data entry service."
Our data entry forms offer an easy, fast, and free way for you to input the reports yourself. Self-entry allows you to add an unlimited number of reports at no cost. We make the self-entry process user-friendly, providing dozens of templates that pre-populate the most popular laboratory panels and offering instant feedback on entered values.
For those who prefer assistance, we offer a "Data entry service" to help you input your data. Simply attach an image or file of your lab test results, and a qualified team member from our data entry team will add the results for you.
We support various file types, including PDFs, JPGs, or Excel. This service is particularly useful if you have many reports to upload or if you're too busy to handle the data entry yourself.
Our Data Entry Service is for when you don't want to manually type in your lab results yourself. You simply upload your report (PDF, image, or screenshot), and our trained team enters the information into your Healthmatters account for you — accurately and neatly organized, ready to view in graphs, tables, and timelines.
The $15 per report covers the time and care it takes for a real person to review your file, make sure each result is entered correctly, and double-check for accuracy. This ensures your health data is precise and easy to work with — without you having to spend the time doing it yourself.
Prefer to do it yourself? You can always use our free self-entry tool to add results manually — it just takes a bit more time and attention.
For users on the Complete monthly plan, the first report is entered free of charge, and each additional report incurs a fee of $15.
Unlimited account holders enjoy the entry of ten reports without charge. Subsequent reports are subject to a $15 fee per report.
Additionally, users on the Complete plan can upgrade to a yearly subscription from the account settings. The annual subscription includes a data entry service for five reports.
All professional accounts allow you to import and onboard an unlimited number of clients and their lab results. The distinction between professional plans lies solely in the data entry service.
The Pro Monthly Plus plan is priced at $75 per month and includes a data entry service for five reports each month. Additional reports can be self-entered at no extra cost or, if preferred, you can use our data entry service for an additional fee of $15 per report.
The Pro Monthly plan is priced at $45 per month and does not include a data entry service. Self-entry is free for an unlimited number of reports, and you can opt for the data entry service at a fee of $15 per report.
You also have the option to upgrade to higher monthly or to annual plans, which come with substantial discounts. All upgrades can be done directly from your account.
Simply log in and navigate to your account settings to cancel your subscription. Scroll down to locate the 'Cancel' button at the bottom of the page. Ensure you cancel at least one day before the renewal date to prevent any charges. Once cancellation is requested, the subscription remains active until the conclusion of the current billing cycle.
Our goal has been to make your Healthmatters account as intuitive as possible.
We've crafted multiple ways for you to navigate your data, whether you're glancing at a single report or delving into your historical test reports.
1. Graph View:Dive into a visual journey with our biomarker graphs, showcasing over 40 data points. Combining years of results unveils trends, empowering you to make informed decisions. Our visualization tools make it a breeze to compare and understand changes over time, even if your results are from different labs. A search function and filters simplify the exploration of extensive data, allowing you to focus on what needs attention.
2. All Tests ViewExplore neatly organized reports on a timeline, highlighting crucial details like dates, critical results, and lab/panel names. Each report opens up to reveal in-depth descriptions and additional recommendations for each biomarker. The history of previous results is just a click away, and you can download a comprehensive report for deeper insights. Color-coded and user-friendly, it's designed for easy reading, understanding, and navigation.
3. Table View:For a holistic view of all biomarkers side by side, our table view is your go-to. Results are neatly displayed in a categorized and dated table, ideal for those with an extensive test history. Utilize sorting, filters, and color-coding to enhance your analysis and gain extra insights.
Yes, you can download your information anytime. We offer two easy ways to export your lab data:
This makes it simple to save, back up, or share your health data whenever you need.
Yes, you can print your report. To do so, navigate to "All tests" and open the report you wish to print. You'll find a print button in the right corner of the report. Click on it, and your browser's print window will open. If you prefer to print in a bigger typeface, adjust the scale using the print window settings.
Yes, you can! We highly recommend activating Two-Factor Authentication (2FA) for your account. To do so, please navigate to the "Profile and Security" section of your account, where you will find instructions for activating 2FA.
Yes, you can. When entering values for the biomarker, you will see an "Edit Range" button. Click this button, and you'll have the option to enter a custom range.
A personal account is all about keeping your own lab test results in check. It's just for you and your personal use.
The professional account is designed for health professionals who wish to track and organize their clients' laboratory results.
To learn more about Healthmatters Pro, please refer to the professional page.
At HealthMatters, we're committed to maintaining the security and confidentiality of your personal information. We've put industry-leading security standards in place to help protect against the loss, misuse, or alteration of the information under our control. We use procedural, physical, and electronic security methods designed to prevent unauthorized people from getting access to this information. Our internal code of conduct adds additional privacy protection. All data is backed up multiple times a day and encrypted using SSL certificates. See our Privacy Policy for more details.
