FSH and LH Blood Test Results Explained

Follicle stimulating hormone (FSH) and luteinizing hormone (LH) blood test results are used to measure the fertility capacities for reproduction in men and women. This test has several uses which include a look at egg development and sperm motility. The results can then be used by a medical provider to determine what may be the cause of an infertility issue, discover the cause of reproductive dysfunction, or help to solidify a diagnosis for a pituitary or hypothalamus issue.

Women may also have the FSH and LH blood test ordered to determine what may be causing menstrual irregularities if they happen on a regular basis. Some women may also have this test ordered to either predict or confirm the start of menopause.

The FSH and LH blood test is also useful for children who are having an irregular timing of puberty onset. It can help a medical provider detect a potential issue with the child’s hypothalamus, reproductive glands, or other systems that contribute to the body changes that occur. It can also determine if there is a benign issue causing the problem or if there is a disease that needs to be treated.

Women should speak to their doctor and the FSH and LH blood test if they are having problems getting pregnant and have been trying for several months. Women who do not have menstrual periods or have irregular periods should also discuss this blood test with their doctor.

Men should speak to their doctor about this blood test if they are unable to get their partner pregnant and testing confirms it isn’t a health issue with their partner. If a low sperm count has been detected or if there is a decreased sex drive that is accompanied by a shrinking muscle mass, men should also think about scheduling an appointment.

The signs and symptoms of a pituitary gland disorder should also be evaluated by a medical professional. This includes: weakness, weight loss, decreased appetite, and persistent fatigue.