What is the normal value of luteinizing hormone (LH)?
May 11, 2022
Source: Cainiu Health
Dr. Pan Yongyuan
Introduction
The normal range for luteinizing hormone (LH) is 0.61–16.3 IU/L. LH works synergistically with follicle-stimulating hormone (FSH) to induce ovulation and promotes the synthesis and secretion of estrogen and progesterone, as well as testosterone synthesis and androgen secretion in the testes. The normal LH reference ranges are:
- Males: 1.2–7.8 IU/L
- Follicular phase (in females): 1.65–15 IU/L
- General female reference range: 0.61–16.3 IU/L
The human body produces a wide variety of hormones, some of which influence overall health, while others play critical roles in growth and development. What, then, is the normal range for luteinizing hormone (LH)?
What Is the Normal Range for Luteinizing Hormone?
The normal reference range for luteinizing hormone (LH) is 0.61–16.3 IU/L. LH works synergistically with follicle-stimulating hormone (FSH) to trigger ovulation, promotes the synthesis and secretion of estrogen and progesterone, and stimulates testosterone production and secretion in the testes. Normal LH levels vary by sex and physiological state: — In males: 1.2–7.8 IU/L — During the follicular phase (in females): 1.65–15.0 IU/L — During the luteal phase (in females): 0.61–16.3 IU/L — At mid-cycle (ovulation peak): 21.9–56.6 IU/L — After menopause: 14.2–52.3 IU/L Abnormally low LH levels may lead to infertility.
Luteinizing hormone (LH) is secreted by basophilic cells in the anterior pituitary gland. In females, LH—alongside FSH—regulates the ovarian menstrual cycle, triggering ovulation and promoting corpus luteum formation. LH secretion is controlled by gonadotropin-releasing hormone (GnRH) from the hypothalamus and is modulated by both positive and negative feedback mechanisms from the ovaries. Combined measurement of LH and FSH is clinically useful for distinguishing between primary (ovarian) and secondary (pituitary) amenorrhea in women. In males, it helps differentiate primary from secondary testicular dysfunction. Additionally, LH and FSH testing aids in distinguishing true precocious puberty from pseudo-precocious puberty in prepubertal children.
To maintain normal LH levels, adopt a light, healthy diet—avoiding spicy, cold, or raw foods—and maintain regular, consistent lifestyle habits.
