Rectal cancer is an oncological disease with certain heredity, and many rectal cancer patients have a family history of cancer, which seriously hurts their health. What are the common treatment methods for rectal cancer? Generally, the common treatment methods for rectal cancer are: 1. Chemotherapy: mostly used as adjuvant therapy before and after rectal cancer surgery. This treatment method for rectal cancer is used before surgery, although it cannot improve the survival rate of patients, it can reduce the size of the tumor to a certain extent, which is conducive to surgical resection and preservation of sphincter function and can reduce the chance of tumor spread during and after surgery; and several studies have shown that the use of sufficient amount of combined chemotherapy after surgery can improve the survival rate of patients. However, as most patients are weak after surgery, it is difficult to tolerate the toxic side effects of chemotherapy, so it is often combined with biological immunotherapy to reduce the toxic side effects. 2.Radiotherapy: It is also a common treatment method for rectal cancer. Radiotherapy for rectal cancer should be used carefully, not only considering its efficacy on cancer foci, but also considering its damage to adjacent organs around rectum. It is generally used only as an adjuvant treatment for rectal cancer surgery and has certain contraindications, and should be used with caution for patients with poor health. Clinically, it is mostly combined with biological immunotherapy to reduce its toxic side effects. 3.Surgical treatment: It is the first choice of treatment for early rectal cancer and has obvious therapeutic effect. This treatment for rectal cancer can also be used for patients with no contraindication to surgery in the middle and late stages, and the metastases of rectal cancer can be removed, but the curative effect is not ideal. Surgical treatment for either early or mid- to late-stage rectal cancer is prone to recurrence and metastasis. Postoperative combined with biological immunotherapy, using autoimmune cells for anti-cancer treatment, can effectively consolidate the surgical effect and effectively prevent cancer metastasis and cancer recurrence. The above is the introduction of common treatment methods for rectal cancer, I believe you have understood this. Patients should choose the suitable treatment method for rectal cancer according to their actual condition, and should not choose blindly.