• What does the Free Testosterone test measure?

This test measures the concentration of free testosterone in the blood, which is the biologically active form of the hormone that is not bound to proteins.

• What is the clinical purpose of this evaluation?

The test is used to evaluate fertility and sexual function in men, diagnose testosterone deficiency, and monitor hormone replacement therapy or delayed puberty in male adolescents.

• Who is recommended to undergo this test?

It is intended for men with symptoms of deficiency or fertility issues, adolescents with delayed puberty, athletes suspected of using performance enhancers, and patients on hormone replacement therapy.

• What symptoms might indicate a need for this test?

Symptoms include decreased sexual desire, persistent fatigue, loss of muscle mass, accumulation of abdominal fat, and mood fluctuations or depression.

• What are the normal reference ranges for men?

For men aged 20-49, the normal range is 5-21 pg/ml. For men aged 50 and older, it is 3-18 pg/ml.

• What level is considered low for younger men?

In younger men, a level below 5 pg/ml is considered low.

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Free Testosterone Test

A precise measurement of active male hormone in the blood to evaluate sexual health, muscle strength, and vitality levels, helping diagnose hormone deficiency in men and improve daily life quality.

Trusted medical contentUpdated: 04-09-2026Views: 106LHL-2079

Free Testosterone Test

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