Top of the page
Luteinizing hormone (LH) is produced by the pituitary gland. In women, LH helps regulate the menstrual cycle and egg production (ovulation); in men, LH stimulates the production of testosterone, which plays a role in sperm production.
Women's LH levels normally vary with the phase of the menstrual cycle, rapidly increasing just before ovulation occurs. This "LH surge" is a dependable sign that a woman is in a fertile time of her cycle. Men's LH levels normally remain constant.
Abnormally high or low LH levels can be a sign of an inability to produce eggs or sperm.
Current as of: February 11, 2020
Sarah A. Marshall, MD - Family Medicine & Adam Husney, MD - Family Medicine & Kirtly Jones, MD - Obstetrics and Gynecology, Reproductive Endocrinology
To learn more about Healthwise, visit Healthwise.org.
© 1995-2020 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.
Make an Appointment
Pay a Bill
For Medical Professionals
Graduate Medical Education
Nursing at WellSpan
Clinical Research Programs
Who We Are
Make a Donation
Connect With Us
Non-Discrimination Statement |
Aviso Contra la Discriminación
© WellSpan Health | Disclaimer & Policies