Luteinising hormones are called gonadotropic hormones, which are produced and released by the group of cells of the anterior pituitary gland.
It is one of the main hormones that control the reproductive system by controlling the function of female reproductive organs – ovaries and male reproductive organs – testes.
Secretion of luteinizing hormone (LH) increases gradually during the follicular phase of the menstrual cycle.
It reaches the maximum level (LH surge) in the middle of the cycle and causes ovulation by stimulating rupture of the Graafian follicle.