Intermediate
Technical
IVT
Luteinizing Hormone
A glycoprotein hormone that triggers ovulation and regulates testosterone production.
Full Definition
Luteinizing hormone (LH) is produced by the anterior pituitary gland and plays crucial roles in reproductive function. In women, LH surges trigger ovulation and stimulate progesterone production by the corpus luteum. In men, LH stimulates testosterone production by Leydig cells in the testes. LH testing is essential for evaluating fertility, menstrual irregularities, and diagnosing conditions like PCOS and hypogonadism.
Usage
Usage note: Spell out on first use, then use 'LH' abbreviation.
In Context
- "The luteinizing hormone surge occurs approximately 24-36 hours before ovulation." — Fertility assessment report
- "Elevated luteinizing hormone levels may indicate primary hypogonadism in male patients." — Endocrinology consultation
Also known as
LH
Lutropin
Don't confuse with
FSH
hCG
Prolactin