In the early stage of bowel cancer, blood loss is the main cause, followed by change in stool habit, incomplete bowel movement, urgency and heaviness. Most of the patients are above 40 years old, and about 15% of them are under 30 years old. Patients must pay attention to timely examination and treatment in professional hospitals for unexplained wasting, weakness and loss of appetite. Here are the treatment methods of total colon cancer to help you. 1.Surgery to remove tumor Surgery is the preferred treatment method for intestinal cancer at present, and the surgical methods include: left hemicolectomy, right hemicolectomy, transabdominal perineal rectal cancer resection, etc. In recent years, due to the improvement of surgical instruments, for low and ultra-low rectal cancer, if the disease is early, anastomosis can also be used for surgery. 2.Chemotherapy for intestinal cancer As about 30%-40% of colorectal cancer patients have metastasis when they are diagnosed, and 50% of them have recurrence after surgery even in the early stage. Therefore, it is very difficult to improve the treatment effect by surgical techniques alone. Systemic chemotherapy is the main means of postoperative adjuvant treatment for early and mid-stage colorectal cancer as well as the means of palliative treatment for advanced colorectal cancer. 3.Radiation therapy for colorectal cancer For advanced tumor patients with late tumor discovery and large invasive range, surgery is difficult to achieve therapeutic effect, radiotherapy can be used instead of surgery to shrink cancer lesions to improve symptoms and relieve obstruction, etc. 4.Interventional treatment For patients with liver metastasis or combined with intractable gastrointestinal bleeding, interventional treatment can be carried out if the treatment effect cannot be achieved by surgery.