The hymen is an annular mucosal fold of the vaginal orifice. Its shape and thickness vary from person to person. Common ones are half-moon or ring, and a few people have sieve and diaphragm shapes. Those who have had sexual life after marriage, those who have had trauma, etc. The hymen is broken, and the residue after the rupture is called hymen mark, which is mainly divided into three types: crack, block and chrysanthemum petal. Hymen repair is to repair these scar cracks that lack sensation and blood supply.