In the case of teenage girls, you can compare the hymen before and after sexual intercourse by lightly touching the vulva or self-examining it in the mirror, such as pain or elasticity and tightness. If the change is obvious and there is excessive bleeding during sex, consider that the hymen has ruptured. If the hymen is broken after having multiple sexual intercourse, it is better to separate, or you can visit a gynecologist and a gynecological examination will help to confirm the diagnosis. Generally after frequent sexual intercourse the hymen becomes elastic and the hymen stretches during sexual intercourse so that the male penis can enter, so there will be tearing pain, but it will recover soon. Usually around the age of 25, the hymen naturally degenerates to a size that is not easily visible and will change shape over time or with estrogen.