The male contraceptive shot theoretically works for a month with one shot, but this form of birth control has not yet been marketed in large numbers. The male contraceptive injection, also known as the testosterone shot, is a new type of male contraceptive. It is injected once a month into the buttocks and has the same effect as the pill and condoms for women. Testosterone is one of the most active androgens and is essential for sperm production. High doses of testosterone can cause an excess of testosterone in the body, which, through a negative feedback mechanism, inhibits the secretion of gonadotropins from the hypothalamus and pituitary gland, which in turn inhibits androgen synthesis and spermatogenesis in the testes. The male contraceptive injection as a method of contraception may be able to be put into use and popularized in the future. A common method is the use of condoms, which do not cause any harm to the female body and prevent the spread of sexual diseases.