Testosterone is a male sex hormone or androgen. It is generally low in women and children, but it can be elevated in certain diseases. A certain level of testosterone is important for development and maturation in both genders. Testosterone is produced in the testes and to a lesser degree in the ovaries. Testosterone (Female/Child) measures total testosterone in the blood. It is expressed as ng/dL. Testosterone levels in young males tend to be about 50% higher in the early morning than in the evening. Androgen status should be assessed on more than one occasion with more than one measurement.
Normal Ranges for total testosterone in women and children:
Males
0-5 months: 75-400 ng/dL
6 months-9 years: <7-20 ng/dL
10-11 years: <7-130 ng/dL
12-13 years: <7-800 ng/dL
14 years: <7-1,200 ng/dL
15-16 years: 100-1,200 ng/dL
17-18 years: 300-1,200 ng/dL
Females
0-5 months: 20-80 ng/dL
6 months-9 years: <7-20 ng/dL
10-11 years: <7-44 ng/dL
12-16 years: <7-75 ng/dL
17-18 years: 20-75 ng/dL
> or =19 years: 8-60 ng/dL
Sources:
https://www.labcorp.com/test-menu/25691/free-androgen-index-fai
https://www.labcorp.com/test-menu/35496/testosterone-free-direct
https://www.mayomedicallaboratories.com/test-catalog/Clinical+and+Interpretive/8533
https://www.uptodate.com/contents/overview-of-androgen-deficiency-and-therapy-in-women
Boys with low testosterone may fail to develop secondary sex characteristics such as deepened voice, pubic hair, and facial hair. They may also be infertile. Low testosterone in women interferes with fertility and sexual function. Low testosterone usually does not cause any noticeable symptoms in prepubescent and adolescent girls.
Some specific causes of low testosterone are:
Understand and improve your laboratory results with our health dashboard.
Upload your lab reports and get interpretation today.
Our technology helps to understand, combine, track, organize, and act on your medical lab test results.
A high free androgen index value indicates that there is too much biologically active testosterone in the blood. Men with too much testosterone may be overly aggressive, develop cystic acne, and have increased body hair. In general, however, adult men may not notice symptoms of too much testosterone. Women with high testosterone develop many noticeable symptoms and signs such as unusual hair growth, obesity, hoarseness, and menstrual irregularities. Children with high testosterone may develop precocious puberty.
Some specific causes of high testosterone levels are:
Interpret Your Lab Results
Upload your lab report and we’ll interpret and provide you with recomendations today.
Get Started
Get Started With Our Personal Plan
Advanced Plan
Unlimited Plan
Are You a Health Professional?
Get started with our professional plan
Welcome to Healthmatters Pro.
Save time on interpreting lab results with the largest database of biomarkers online. In-depth research on any test at your fingertips, all stored and tracked in one place. Learn more
Pro Plan
for health professionals
$45 per month
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.
5-Methyltetrahydrofolate, Adiponectin, Albumin/Creatinine Ratio, Random Urine, Anti-Thyroglobulin ab. (0-39), C-Peptide, Serum, Ceruloplasmin, Creatinine, Random Urine, Cyclic AMP, Plasma, Dihydrotestosterone (female), Dihydrotestosterone (male), Estimated Average Glucose (eAG), Free Androgen Index, Free testosterone, Free Testosterone, Direct (Female), Free Testosterone, Direct (Male), Free Thyroxine, Free Thyroxine Index, Fructosamine, Glucose, Glutamic Acid Decarboxylase, Glycated Serum Protein (GSP), Hemoglobin A1c (HbA1c), HOMA-B, HOMA-IR, HOMA-S, Homocysteine, Insulin (Fasting), Insulin Antibody, Insulin-Like Growth Factor I (IGF-1), Iodine, Serum/Plasma, Parathyroid Hormone (PTH), Serum, Pregnenolone, Proinsulin, Reverse T3, Serum, Sex Hormone-Binding Globulin (SHBG), T3, Free, T4, Free, T4, Total (Thyroxine), T7 Index, Testosterone, Testosterone (Female/Child), Testosterone, Serum (Female), Thyroglobulin, Thyroglobulin Antibodies (0 - 1 IU/L), Thyroid Peroxidase Antibodies (Anti-TPO Ab), Thyroid Stim Immunoglobulin, Thyroid-Stimulating Hormone (TSH), Thyrotropin Receptor Ab, Serum, Thyroxine-binding globulin, TBG, TMAO (Trimethylamine N-oxide), Total T3, Tri iodothyronine (T3) Uptake, Triiodothyronine, Serum
