The hymen is a membrane present at the outer opening of a woman’s vagina, pink in color, with a moist surface and a hole in the center. During puberty the hymen is relatively small and after development it gradually increases in size, becomes thinner and is quite tough. Functionally, the hymen protects the vagina. The hymen ruptures and bleeds during sexual intercourse. The traditional concept of the integrity of the hymen is the only test of sexual intercourse. Therefore, on the wedding night, there is the expression “seeing red” or “checking red”. In modern society, the concept of losing virginity has gradually faded, but in the minds of some people, especially men and elders, still use the hymen to identify whether a woman has lost her virginity. Sexual intercourse can certainly rupture the hymen, but hymen rupture is not always caused by sexual intercourse, such as strenuous exercise, trauma and physical labor can sometimes cause hymen rupture. It has also been reported in the literature that about 1/3 of women do not bleed during their first sexual intercourse. A ruptured hymen can be extremely psychologically taxing for unmarried women, and some women suffer from depression as a result. In fact, although the hymen does not bleed during intercourse after a hymen rupture, surgical methods can be used to repair the hymen, and the repaired hymen can bleed again during intercourse. Therefore, don’t let the hymen become a pain in your heart!