Testosterone is a male hormone that is present in both men and women. The hormones is responsible for male sexual development and libido. Normal levels of testosterone in men range from 300 to 1000 nanograms per decliter; female levels of testosterone fall in the 20 to 80 ng/dl range. A lower-than-normal level of testosterone in males can produce symptoms such as delayed puberty, impotence and infertility, while women who have too much of the hormone may experience excessive body hair and irregular periods, according to the National Institutes of Health. A blood test can be performed to check testosterone levels.
Step 1
Undergo a physical examination by a physician to look for factors that could lead to abnormal testosterone levels. The exam itself will not determine what the hormone levels are but can detect conditions, such as liver disease and prostate cancer, or diseases that can cause elevated testosterone levels in men. Ovarian cysts or tumors can be a cause of high testosterone in women.
Step 2
Discontinue, under your doctor's supervision, medications or therapies that could affect testosterone readings during a blood test. The American Association for Clinical Chemistry states that estrogen-based hormone replacement therapy in women, and androgen and steroid supplementation in men can affect the production of testosterone. Both males and females may be advised to reduce dosages of anticonvulsant or barbiturate drugs prior to a blood draw.
Step 3
Have your blood drawn at a medical lab facility to check testosterone levels. No special dietary preparation, such as fasting, is required to test hormone levels.
Things You'll Need
- Blood test
