What Is a Normal Range for Luteinizing Hormone?

The normal range of luteinizing hormone (LH) in women and men varies according to different factors. For example, a woman during the middle of her menstrual cycle should have a normal LH level in the range of 21.9 to 56.6 IU/L, according to WebMD. In women who are past menopause, the normal range is between 14.2 and 52.3 IU/L, relates the National Institute of Health.

The normal range for men older than 18 years is much lower and can be between 1.24 and 7.8 IU/L. Luteinizing hormone is produced in the pituitary gland. In women, the main function of LH is the regulation of the menstrual cycle and ovulation, while LH is important for sperm production in men, states WebMD.

The levels of LH can be found through either a urine or blood test. Some different reasons for women to get this test are that they are unable to conceive and have irregular menstrual cycles, relates the National Institute of Health. Doctors also may request this test for fertility problems in men.