The condom during menstruation has a certain impact on the body, mainly may lead to the following consequences: 1, may lead to pathogens into the uterine cavity, resulting in endometritis, cervicitis and other gynecological diseases, and in the menstrual period may appear to bleed more, the impact on the body is greater. 2, if you often cohabitate during the period of menstruation, may lead to the appearance of vaginal secretions, and may also be accompanied by symptoms of pain in the lower back, and in severe cases, may also appear menstrual dribbling and other symptoms. The symptoms will be accompanied by pain in the lower back, and in serious cases, there will be symptoms such as menstrual dribbling.3. If you have sex during menstruation, it will lead to uterine contraction, and then the menstrual blood will flow down the fallopian tubes into the pelvic cavity, which will lead to more serious diseases, such as endometriosis, and will also aggravate the problem of menstrual cramps, and in serious cases, it may also lead to symptoms of infertility.