Small bowel tumors are usually larger than 2cm are mostly malignant. Small bowel tumors are generally tumors that occur in the intestinal canal of the small bowel from the duodenum to the ileocecal valve. Usually associated with genetic, poor diet and other factors, small intestinal tumors are a kind of junctional tumors, lesions less than 1cm belong to the benign and low risk state, more than 2cm belong to the malignant high risk state. The hazards of small intestinal tumors include intestinal perforation, intestinal bleeding, intestinal obstruction, severe dehydration, etc. Therefore, small intestinal tumors need to draw the attention of the population, do routine medical checkups, and have timely checkups if there is any discomfort. Small intestinal tumors, in general, can be treated with resection of duodenum, jejunum and other intestinal segments under the guidance of doctors. Patients with small intestinal tumors should keep their bowel movement smooth, exercise properly to promote metabolism and enhance physical fitness, consume easily digestible and nutritious food, avoid overeating and consuming raw, cold, spicy and other stimulating food, and quit smoking and drinking to avoid deterioration of the condition. It is recommended that once found, patients should go to regular hospitals for examination and diagnosis, and receive treatment under the guidance of professional doctors to avoid deterioration of the condition.