There are many reasons why you keep bleeding after intercourse, which may be caused by cervical polyps, squamous intraepithelial lesions of the cervix, cervical cancer, preeclampsia, and so on, and according to the different causes, you can use general treatment, medication, and surgical treatment. If you keep bleeding after intercourse, you need to consult a doctor in time for examination. Patients can undergo gynecological examination, HPV test and liquid-based cytology to rule out precancerous cervical lesions. If the gynecological examination finds that there are cervical polyps, surgical removal is needed, along with pathological examination. If the cervical cancer screening is abnormal, further colposcopy and cervical biopsy are needed to determine the nature of the lesion. If it is a low-grade lesion, it can be followed up for observation. If it is a high-grade lesion, cervical conization can be performed. If the examination is cervical cancer, surgical treatment, radiotherapy and chemotherapy are needed according to the cancer stage. Bleeding after coitus may also be preeclampsia, you can check the blood HCG, if it is determined that it is preeclampsia, you need to rest in bed, under the guidance of the doctor for birth control treatment. Bleeding after coitus is a constant problem that requires prompt medical attention to determine the cause of the problem and treatment under the guidance of a doctor.