Generally speaking, if you do not enter the vagina or have substantial sexual intercourse through pants, it will not cause the hymen to rupture. However, repeated rubbing of the vulva through pants may increase the chance of infection if it causes the mucous membrane of the vulva to break down. The hymen of mature women is usually located within 0~3cm of the vaginal opening. If excessive force is applied to the hymen, it may also cause rupture, but the chance of occurrence is small. If you want to determine whether the hymen is ruptured or not, you usually need to be examined by a professional gynecologist to determine.