Testosterone
Why It Is Done
A testosterone test is done to:
- See why a man is having problems in fathering a child (infertility). A low amount of testosterone can lead to low sperm counts.
- Check a man's sexual problems. A low level of testosterone may lower a man's sex drive or not allow him to have an erection (erectile dysfunction).
- See whether a high level of testosterone is causing a boy younger than age 10 to have early signs of puberty.
- Check a decreased sex drive in a woman. This may be due to the level of testosterone in her body.
- Find out why a woman is developing male features, such as excessive facial and body hair (hirsutism) and a deep voice.
- Find out why a woman is having irregular menstrual periods.
- See if testosterone-lowering medicines are working in a man with advanced prostate cancer.
- Find the cause of osteoporosis in a man.
 Go to previous section |  Go to top of page |  Go to next section |
| Author: | Bets Davis, MFA | Last Updated: May 29, 2008 |
| Medical Review: | Martin Gabica, MD - Family Medicine David C.W. Lau, MD, PhD, FRCPC - Endocrinology & Metabolism | |
 | ||
| |
| Topic Contents | |
| Test Overview | |
 | Why It Is Done |
| How To Prepare | |
| How It Is Done | |
| How It Feels | |
| Risks | |
| Results | |
| What Affects the Test | |
| What To Think About | |
| References | |
| Credits | |