Just after menstruation, intercourse causes bleeding for more reasons, if it is endometrial congestion, usually 2~3 days can be good. If it is cervicitis, cervical polyps and other diseases, usually can not get better by themselves. Bleeding during intercourse just after menstruation, if the endometrium is stimulated during intercourse leading to congestion, it can usually improve on its own, and most women can stop bleeding in 2~3 days. However, due to the different physique of each person, there are some women whose bleeding lasts for a longer period of time, which may last for about 7 days, resulting in endless menstrual flow. It should be noted that vaginal bleeding caused by coitus after menstruation may also be caused by gynecological diseases, such as cervicitis, cervical polyps, uterine fibroids and so on, which will lead to the symptoms of abnormal vaginal bleeding. If the vaginal bleeding caused by disease, can not get better on their own, the need for timely treatment, such as cervicitis patients follow the doctor’s instructions to take ceftriaxone sodium, cefoxitin and other antibiotics, cervical polyps, uterine fibroids patients to take the surgery to remove them, the bleeding can only be improved. It is not recommended to have intercourse just after menstruation, if the bleeding time is too long, it is recommended that the patient consult a doctor for examination and clear diagnosis.