Conditions · FAQ
What is low testosterone, and how is it diagnosed?
Short answer
Low testosterone, also called hypogonadism, means the body is not making enough testosterone. In adult men, diagnosis usually requires symptoms plus low levels on two separate morning blood tests. A single low result is not enough. A licensed physician reviews your symptoms, test results, and possible causes together.
Testosterone is a hormone that helps support sex drive, sperm production, muscle, and bone health. Low testosterone means the body makes less than it needs. However, a low lab number alone does not always mean you have hypogonadism or need medication.
In adult men, diagnosis usually requires symptoms and low testosterone levels on two separate morning blood tests. Your physician may ask you to fast before testing. Illness, poor sleep, certain medicines, and the time of day can affect results. If you work nights, ask your physician when testing should happen.
Sometimes, a physician orders more tests to understand a borderline result or find the cause. These may include free testosterone and hormones that signal the testicles to make testosterone. The normal range can vary by lab and testing method.
A licensed physician in your state decides whether treatment is appropriate. The goal is to understand the full picture, not treat one number without checking your symptoms and health history.
Sources
Written by the Verra clinical team · Medical review pending
General information, not medical advice. If you're in crisis, call or text 988.