A virgin is a woman who has not had sexual intercourse, but it is not possible to definitively determine whether or not the hymen has been ruptured. A virgin is a woman who has not had sexual intercourse, i.e. a woman who has not been penetrated by a man’s penis, and within this category is said to be a virgin. During the first sexual intercourse, the hymen can be ruptured due to the penetration of the penis into the vagina, and redness can occur. However, it is not entirely scientific to determine virginity through hymen rupture, as some women may experience hymen rupture even if they have not had sex, such as during strenuous exercise. Women should relax and not be too nervous during their first sexual intercourse, and at the same time, the sexual intercourse should be gentle and not too strenuous. If there is discomfort after sex, it is recommended to go to the hospital in time and follow the doctor’s instructions to deal with the treatment.