Luteinizing hormone (LH, also known as luteinising hormone, [1] lutropin and sometimes lutrophin[2]) is a hormone produced by gonadotropic cells in the anterior pituitary gland. The production of LH is …

Luteinizing hormone (LH) stimulates processes in your body that are important for puberty, sexual function, reproduction and sex drive. A tiny structure at the base of your brain called the pituitary …

This test measures the level of luteinizing hormone (LH) in your blood or urine (pee). LH affects sexual development in children and fertility in adults. Learn more.

Sep 5, 2024 · A luteinizing hormone test measures how much luteinizing hormone (LH) is in your blood. LH helps your reproductive system: specifically, a woman’s ovaries and a man’s testes.

Jul 26, 2025 · Luteinizing hormone (LH) is a crucial reproductive hormone that triggers ovulation in women and testosterone production in men. Testing LH levels helps diagnose fertility issues, …

In women, the pituitary sends out LH during the ovulation part of the menstrual cycle. This tells the ovaries to release a mature egg. In men, LH causes the testes to make testosterone. This test can …

May 20, 2024 · Luteinizing Hormone (LH) is an important reproductive hormone in both women and men. It’s produced by the pituitary gland, and its levels in the blood are maintained by the HPG axis; …

Jun 12, 2025 · Here is everything you need to know about what the luteinizing hormone (LH) is, what a “normal” LH range is considered to be, how to test for LH at home or at the doctor’s office, and what …

LH plays a central role in the reproductive processes of both men and women. In women, it is involved in regulating the menstrual cycle and triggering ovulation, while in men, it is essential for the production …

LH levels normally change with the phase of the menstrual cycle. This hormone goes up fast just before ovulation occurs, about midway through the cycle (day 14 of a 28-day cycle).