Gonadotropin is a type of hormone produced by the pituitary gland that plays a crucial role in regulating the reproductive system. There are two main types: luteinizing hormone (LH) and follicle-stimulating hormone (FSH). These hormones stimulate the production of sex hormones and the development of eggs in females and sperm in males. In women, gonadotropins help control the menstrual cycle and ovulation, while in men, they are essential for testosterone production and sperm maturation. Gonadotropins are often used in fertility treatments to assist individuals or couples trying to conceive.