In women approaching menopause, FSH levels can vary dramatically depending on the regularity of their menstrual cycle. In women with regular menstrual cycles, FSH levels tend to range from 1.4-9.9 mIU/mL during the first half of the menstrual cycle before rising up to 17.2 mIU/mL during ovulation.ĭuring pregnancy, FSH levels drop to ≤ 0.1 mIU/mL.
Therefore, “normal” FSH levels vary depending on factors such as your age, whether or not you are pregnant, and what stage of the menstrual cycle you are in. In women, FSH levels in the blood can range from as low as 0.1 mIU/mL during pregnancy to above 100 mIU/mL during menopause. While FSH is produced by both men and women, please note that this article focuses on the role that FSH plays in the female reproductive process. We’ll also cover what it may mean if your FSH levels are too high or too low, and how you can have your FSH levels tested. To help you better understand how this hormone works and what levels you can expect it to be throughout your menstrual cycle and beyond, here’s a closer look at what FSH is, what it does, and what are considered “normal” FSH levels. In women specifically, FSH is known for stimulating the early development of ovarian follicles, which eventually go on to release an egg during ovulation. Released by the pituitary gland, follicle stimulating hormone (FSH) is a gonadotropic hormone that works alongside luteinizing hormone (LH) to regulate key reproductive processes.
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