According to Encyclopaedia Britannica, the interstitial cell-stimulating hormone is a gonadotropic hormone that influences the production of testosterone and progesterone in men and women. However, the interstitial cell-stimulating hormone, also called the luteinizing hormone, has slightly different functions for women than for men.
Encyclopaedia Britannica notes that the interstitial cell-stimulating hormone is produced in the pituitary gland. In men, it stimulates the interstitial cells of the testes, which aid in the production of testosterone. In women, following ovulation, the interstitial cell-stimulating hormone causes a change in a small vesicle in the ovary called the graafian follicle. The graafian follicle is transformed into an endocrine gland called the corpus luteum, which secretes progesterone.
According to Wikipedia, the production of this hormone is cyclical, especially in females. An acute rise in the production of this hormone can trigger ovulation in women. Interstitial cell-stimulating hormone levels are normally low in children and high in women after menopause. The production of this hormone occurs in surges, meaning levels are high initially and lower as time passes between surges. If monitoring interstitial cell-stimulating hormone production, the 24 to 48 hours following a high reading is generally the best time for women to engage in intercourse or artificial insemination if they intend to conceive.