Cervical cancer is one of the most common malignant tumors in the female reproductive system. Cervical cancer is also the only malignant tumor among gynecological tumors whose pathogenesis can be known and can be detected and treated early. With the popularization of screening for both cancers, early detection of cervical cancer has reduced the number of patients with advanced stages, but there are still a small number of people who need further treatment because they do not care. There will be some complications during the treatment of cervical cancer, including post-operative complications and also complications of adjuvant treatment modalities such as chemotherapy and radiotherapy, which bring a lot of inconvenience to patients. Do you know what is the bleeding in stool after radiotherapy for cervical cancer? Not only for cervical cancer, in the process of radiotherapy for all malignant tumors, as radiation kills cancer cells, it will also cause damage to normal tissue cells. Bleeding after radiotherapy after cervical cancer is radiation enteritis caused by radiotherapy. The primary focus of cervical cancer originates from the cervix, and generally speaking, the radiotherapy scratch point also mainly lies at the vaginal stump and the cervix, while the vagina is close to the bladder and rectum, so, to a certain extent, the rectum is most likely to be damaged. Acute radiation reaction may occur within 3 months after 3 days of radiotherapy, because the radiation causes damage to the blood vessels of the intestinal wall, causing local intestinal wall blood circulation disorders, resulting in local mucosal edema, necrosis and ulcer formation, and therefore easy bleeding. After 3 months, the intestinal wall may become stiff and brittle due to connective tissue proliferation and tissue fibrosis, which may cause bleeding and even perforation of the intestinal wall. If it is not treated in time, it can cause permanent radiation damage and even possible hemorrhage. Therefore, if there is bleeding in the stool after radiotherapy, you can consider performing colonoscopy to understand whether there is potential perforation and deal with it in time.