^

Health

A
A
A

Luteinizing hormone in the blood

 
, medical expert
Last reviewed: 23.04.2024
 
Fact-checked
х

All iLive content is medically reviewed or fact checked to ensure as much factual accuracy as possible.

We have strict sourcing guidelines and only link to reputable media sites, academic research institutions and, whenever possible, medically peer reviewed studies. Note that the numbers in parentheses ([1], [2], etc.) are clickable links to these studies.

If you feel that any of our content is inaccurate, out-of-date, or otherwise questionable, please select it and press Ctrl + Enter.

Luteinizing hormone is the peptide hormone of the anterior lobe of the pituitary gland. Targets of luteinizing hormone in women include ovarian cells and the yellow body. Luteinizing hormone stimulates ovulation and activates in ovarian cells the synthesis of estrogens and progesterone. It activates the synthesis of testosterone in the cells of the Leidig testis in men.

Reference values (norm) of luteinizing hormone concentration in blood serum

Age

LH, IU / L

Children under 11 years of age

0.03-3.9

Women:

 

Follicular phase

1.68-15

Ovulation phase

21.9-56.6

Luteal phase

0.61-16.3

Menopause

14.2-52.3

Men's

1.24-7.8

During the menstrual cycle, the level of luteinizing hormone remains low, except for its rise in the middle of the cycle. Approximately 12 hours before the peak of the luteinizing hormone in the middle of the cycle is preceded by the preovulatory peak of estradiol, while ovulation itself occurs approximately 12-20 hours after reaching the maximum concentration of luteinizing hormone.

trusted-source[1], [2], [3], [4], [5], [6], [7], [8], [9]

You are reporting a typo in the following text:
Simply click the "Send typo report" button to complete the report. You can also include a comment.