The treatment period and recovery period of rectal cancer is quite long, and because of the disease location, if you do not control your diet, it will cause great hindrance to the recovery of the disease, so you should pay attention to the post-operative diet of rectal cancer, let’s take a look below. The dietary recipe should pay attention to eating a liquid diet and forbid to eat spicy and stimulating food. It is better to have a bland diet and not to eat very greasy food. Early after rectal surgery patients will have confusion about the effectiveness of the intestinal tract, the most common is diarrhea, followed by constipation. The most common is diarrhea, followed by constipation, which is obviously relieved after 3~6 months after surgery, without extra treatment. The diet after rectal cancer surgery is low fiber, low lactose, low fat and high egg white diet, and the amount of fiber is increased after the intestinal effectiveness is recovered. If diarrhea occurs after surgery, high lactose package of rice, banana, applesauce and fruit juice should be stopped. Constipated people should increase the amount of fiber, eat more fruits, vegetables, cereals, fruit juice, and vitamin B12 after surgery. To reduce the intake of fats and oils in the diet The relationship between diet and cancer, which has been most studied, is fats and oils, including saturated fats and unsaturated fats. Fats and oils in the diet can promote the growth of cancer cells, and can also cause early mutation of normal cells, which can lead to tumor formation. Whether animal or vegetable fats, try to reduce them as much as possible. Excessive fats, especially animal fats, can stimulate bile acid secretion in the small intestine. When the amount of bile acid in the intestine is too high, it is easy to form carcinogenic substances and encourage the growth of cancer cells. This shows that a high-fat diet is closely related to the development of rectal cancer. The main effect of fiber in food is to normalize intestinal movement, increase the volume of feces, and reduce the amount of time feces stays in the rectum. The fecal matter present in the colon can make bacteria active and perhaps carcinogenic substances occur. When there is a lack of fiber in the diet, the stool in the colon becomes dry and hard, plus the agreed rate is slow and the abdominal wall muscles become weaker, making the evacuation time extended, and if it takes too long, the chances of developing colon cancer will be relatively advanced. Many studies have confirmed that fiber in food can dilute carcinogenic substances in fats and oils, and can accelerate the rate at which carcinogenic substances are rejected from the body through the digestive system.