Description
In women, FSH helps control the menstrual cycle and stimulates the growth of eggs in the ovaries. FSH levels in women change throughout the menstrual cycle, with the highest levels happening just before an egg is released by the ovary. This is known as ovulation. In men, FSH helps control the production of sperm. Normally, FSH levels in men do not change very much.
Precaution
If you are a woman who has not gone through menopause, your provider may want to schedule your test at a specific time during your menstrual cycle.