The vast majority of female hymens are broken during the first sexual intercourse. The first sensation is localized pain. Although the hymen is thin, it still has blood vessels and nerves, so localized pain will occur when the hymen is torn. The second sensation is a small amount of bleeding, which is bright red and very small, and is usually completely clean in about 2 days. It is recommended that after the hymen is broken it is important to keep the area clean and change the sanitary napkin regularly to avoid pathogenic infection. In addition, there are some women who, after strenuous activity or due to trauma, can also cause damage to the hymen, and no more bleeding or pain will occur during the first sexual intercourse.