There may be several reasons for bleeding after intercourse for a few days after menstruation: 1. When menstruation has just passed, there is still a small amount of menstrual blood in the uterine cavity and vagina, so vaginal bleeding can easily occur with the stimulation of intercourse; 2. Celiac disease, cervical polyps, submucosal fibroids can occur under the stimulation of intercourse, but the amount of vaginal bleeding is usually not much; 5. Cervical lesions can manifest as contact bleeding or even haemorrhage. Therefore, when bleeding after intercourse occurs, you should visit a hospital and undergo internal gynecological examination, pelvic ultrasound examination, vaginal discharge examination and cervical cancer screening if necessary, in order to clarify the cause of bleeding and carry out targeted treatment.