24-Hour Urinary Testosterone Excretion Rate

Why Is This Test Done?

Your healthcare provider may recommend this test if you have symptoms like low libido, fatigue, or unexplained infertility, or if you have conditions such as hypogonadism (low testosterone) or hyperandrogenism (high testosterone). It can also be used to monitor treatment effectiveness for hormone-related disorders.

How Is the Test Performed?

You’ll collect all urine for a full 24-hour period, typically starting after waking up and ending after the next morning’s wake-up. The urine is then sent to the lab for analysis. This method ensures an accurate measure of your body’s natural testosterone excretion over a full day.

What Does the Test Result Mean?

Results are not provided as a single number but rather as a range of excretion values. Abnormal results may indicate either too much or too little testosterone production, prompting further evaluation by your doctor.

Common Conditions Evaluated

This test is often used to diagnose or monitor conditions like primary or secondary hypogonadism, androgen insensitivity syndrome, or to check for excessive androgen exposure in cases of suspected polycystic ovary syndrome (PCOS) or other hormonal imbalances.