Serum FSH levels

Serum FSH (follicle-stimulating hormone) levels are a blood test that measures a hormone involved in reproductive health. In women, FSH helps control the menstrual cycle and egg production, while in men, it aids sperm production. Normal FSH levels vary depending on age and gender. Elevated FSH may indicate that the ovaries or testes are not functioning properly, often seen in menopause or infertility. Low levels can suggest issues with hormone production or brain function related to hormone regulation. Overall, FSH testing provides important information about reproductive health and hormonal balance.