The swelling around the belly button with blood in the stool is considered to be related to colon polyps, ulcerative colitis, colon cancer, etc., which need to be combined with the cause to take medication and surgical treatment. 1. Colon polyps: often show abdominal pain, abdominal distension, blood in the stool, etc., which may lead to bloating around the navel with blood in the stool, mainly endoscopic resection treatment. 2. Ulcerative colitis: it often shows abdominal pain, diarrhea, mucus, pus and blood stools, which may lead to swelling around the navel with blood in the stool, it is recommended to give aminosalicylic acid preparations, glucocorticoids, immunosuppressants, etc., and choose surgical treatment if the treatment effect is not good or the condition is serious. 3. Colon cancer: it often manifests as blood in stool, abdominal pain, etc., which may lead to swelling around the navel with blood in stool, and clinical treatment is mainly based on surgery combined with radiotherapy. There are other reasons for the swelling around the belly button with blood in the stool, therefore, when the above symptoms occur, it is recommended to seek medical treatment as soon as possible, to clarify the cause of the disease after scientific examination, and to treat the disease as soon as possible.