Luteinizing Hormone (LH) is a key hormone produced by the pituitary gland, playing a crucial role in the reproductive system. It is responsible for regulating the menstrual cycle in women and the production of testosterone in men.

Importance: LH levels help assess reproductive health, monitor fertility treatments, and diagnose conditions such as polycystic ovary syndrome (PCOS), hypogonadism, and pituitary disorders. It is also used in evaluating ovulation in women and sperm production in men.

When is it done?: The LH test is often recommended in cases of irregular menstrual cycles, infertility, or suspected hormonal imbalances. It is also used to assess pituitary function, evaluate ovarian reserve, and monitor response to fertility treatments. It may be conducted in conjunction with other hormones, such as FSH (Follicle-Stimulating Hormone), for a more comprehensive evaluation of reproductive health.