Rectal cancer is a common malignant tumor in digestive tract, and the proportion of rectal cancer in young people in China is relatively high, about 10% ~ 15%. Cancer is caused by the interaction of many different factors, such as environment, nutrition and diet, heredity, viral infection and lifestyle choice. 13 cancer can be prevented,13 cancer can be treated if it is diagnosed early, especially rectal cancer.

Measures to prevent rectal cancer mainly include:

1, reasonable diet, prevention and treatment of constipation. High-fat and high-protein food can increase methyl cholanthrene in feces and induce colorectal cancer. Less fiber food slows down the speed of feces passing through the intestine and increases the contact time between carcinogens and intestinal mucosa.

2. Actively treat chronic rectal inflammation. For example, ulcerative colitis and schistosomiasis can make intestinal mucosa repeatedly damaged and repaired and become cancerous, so it should be actively treated.

3. Early treatment of precancerous lesions. For example, rectal adenoma and polyp have a high malignant rate and must be treated by surgery as soon as possible.

The metastasis of rectal cancer is advanced, and early radical surgery can be cured, which depends on the early detection of rectal cancer. Patients do not pay enough attention to symptoms such as blood in the stool and changes in stool habits, and doctors are not vigilant, which leads to delays in treatment.

Early diagnosis of rectal cancer has the following methods:

1, do fecal occult blood test for high-risk groups, and further check those who are positive.

2. Patients who encounter symptoms such as bloody stool, change of stool habits, and deformation of stool must undergo rectal finger examination, which can touch more than 75% of rectal cancer.

3, rectal digital examination failed to touch the cancer and high suspicion, should be endoscopic examination, biopsy pathological examination after finding the mass.