Wild vegetables cannot prevent bowel cancer. The causes of bowel cancer are complex, such as genetic factors, age factors, the high incidence of bowel cancer is more than 50 years old, prolonged sedentary, lack of exercise, high-fat diet, eat high phosphorus, low-fiber, low-calcium diet too much will increase the risk of bowel cancer. Bowel polyps, chronic ulcerative colitis, obesity and so on also tend to increase the risk of bowel cancer. As a kind of food, wild vegetables can supplement the nutrients needed by the body, but it has no effect on the prevention of bowel cancer. To prevent bowel cancer, it is necessary to keep the bowel smooth, do not sit for a long time, eat reasonably, and the people with high-risk factors have to have regular medical checkups. It is suggested that patients should maintain good dietary and living habits, have regular medical checkups, and consult the doctor as soon as possible if they feel unwell, so as to avoid delaying their condition.