How many chemotherapy sessions are usually required after rectal cancer surgery

How many chemotherapy sessions are usually required after rectal cancer surgery?

Rectal cancer refers to cancer from the dentate line to the junction of the rectum and the sigmoid colon. It is one of the most common malignant tumors of the digestive tract. Rectal cancer is located low and is easy to diagnose through rectal examination and sigmoidoscopy. However, due to its location deep in the pelvic cavity, complex anatomical relationships, difficult surgery, and high postoperative recurrence rate, mid- and lower rectal cancer is close to the anal sphincter, and the anus and its function are difficult to protect during surgery. This is also the most controversial disease in surgical methods.

Chemotherapy is one of the most effective methods for treating cancer. It is known as one of the three main treatments for cancer, along with surgery and radiotherapy. Surgery and radiotherapy are local treatments that are only effective for tumors at the treatment site, and it is difficult to effectively treat potential metastatic lesions. Cancer cells have actually metastasized, but due to current technical limitations, it is impossible to find and detect cancer that has metastasized clinically. Chemotherapy is a means of systemic treatment

The cause of colorectal cancer is not very clear. Its incidence is related to social environment, eating habits, genetic factors, etc. Rectal polyps are also a high-risk factor for rectal cancer. At present, excessive intake of animal fat and protein and insufficient intake of dietary fiber are high-risk factors for rectal cancer. Chemotherapy is divided into radical chemotherapy, palliative chemotherapy, postoperative adjuvant chemotherapy, preoperative chemotherapy and intracavitary chemotherapy. Each chemotherapy is carried out differently for the patient.

Rectal cancer is a common malignant tumor in the digestive system. Its typical symptoms are stool characteristics, changes in habits, acute and severe symptoms. The specific basis for the examination also needs to be clarified. The installment of the disease is determined according to the degree of tumor invasion. Surgical treatment should be the first choice, stop after surgery, chemotherapy once every three to four weeks, and repeat three to four times. It cannot be said to be completely cured, but it can be effectively treated.