A little pain in the lower part of the coitus may be caused by non-disease factors, such as hymen rupture, vaginal dryness, etc., usually do not need special treatment; but there may be caused by pathological factors, such as cervicitis, vaginitis, etc., can be prescribed by the doctor to take medication and other ways of treatment. 1. Physiological factors: (1) hymen rupture: when women have sex for the first time, the hymen can be ruptured, and there will be pain, and will be accompanied by a small amount of bleeding, no need for treatment, can be improved by themselves. (2) vaginal dryness: lack of sufficient sexual stimulation for sex, can be due to vaginal dryness, so that both parties have pain. It is recommended to make good preparation before sexual intercourse and use lubricant if necessary. 2. Pathological factors: vaginitis, cervicitis: can cause pain during intercourse, and will be accompanied by increased vaginal discharge, vulvar itching and other discomforts, you can follow the doctor’s advice to use metronidazole, tinidazole, clotrimazole, clindamycin and other drugs. The use of drugs need to follow the doctor’s instructions, can not be applied on their own. In addition, there are many other reasons can cause a little pain in the bottom of the coitus, it is recommended that patients go to the hospital in a timely manner to find out the cause of the disease, and then receive treatment as soon as possible.