Many patients, once they find out they are suffering from rectal cancer, often go to the hospital with their family members to seek treatment urgently and ask the doctors to remove the tumor as soon as possible. In fact, the treatment of modern rectal cancer is different from that of the past, and the time of surgery is determined by the doctor according to the condition and overall treatment. For patients suffering from rectal cancer, it is very crucial to find a hospital and a specialist for systematic treatment. We hope this article can help patients to get reasonable treatment and get the chance to preserve anus in the end. Colorectal cancer is a common malignant tumor in the gastrointestinal tract. Originally, colon cancer and rectal cancer were collectively referred to as colorectal cancer, but recently it has been found that rectal cancer and colon cancer have many differences in biological behavior and treatment methods, therefore, rectal cancer and colon cancer have been distinguished in the professional field and treatment guidelines have been formulated separately. Among gastrointestinal tumors, colorectal cancer has a relatively good prognosis, with a median survival of more than 30 months after comprehensive treatment, even at advanced stages. A distinct difference from the colon cancer treatment system is that treatment of rectal cancer involves preservation or restoration of important organ functions, mainly including: preservation of the anus, good postoperative sexual function, urinary function, and bowel function. The treatment of rectal cancer is far more complicated than that of colon cancer for the following reasons: 1. anatomical reasons: the anatomical structure of this area is complex, and there are many adjacent organs and important ones, such as genitourinary organs mainly concentrated in this area; 2. functional reasons: the preservation of the anus should be considered during surgery, and attention should also be paid to sexual function and urinary function; 3. complexity of treatment: the treatment plan should be reasonably formulated according to the condition before and after surgery 4. Difficulty of doctors’ mastery of the disease treatment system: doctors’ mastery of the diagnosis and treatment system of rectal cancer requires both a mentor and sufficient understanding, otherwise it is difficult to implement the principles required by the guidelines to the individual patient and to achieve the best case-by-case treatment, and generally speaking, without more than 15 years of clinical experience in the specialty, it is difficult to say that they can achieve reasonable treatment, skilled surgery, and good understanding of the disease. Generally speaking, without more than 15 years of clinical experience in the specialty, it is difficult to achieve reasonable treatment, skilled surgery and effective management of complex complications. In fact, rectal cancer can be detected at an early stage, and frequent blood in the stool is an important symptom, but many people tend to take it lightly or are reluctant to see a doctor, but in fact, a rectal finger examination or a simple colonoscopy can confirm the diagnosis. Grasp such a scale: if blood in stool is more than two weeks, you should go to the hospital for relevant examination, adhere to this point, most rectal cancers can be detected early.