The probability of malignancy of enteroscopic tumors is not certain, and whether a specific tumor is benign or malignant needs to be determined by tissue biopsy. Of course, benign tumors and malignant tumors have certain differences in morphology, size and other aspects of clinical manifestations of symptoms. 1. Morphology: benign tumors are smooth and regular in shape, while malignant tumors are irregular in shape, with ulcers, bleeding and other symptoms. 2. Size: In most cases, tumors under 1.5-2 cm are more likely to be benign, while tumors over 2 cm are more likely to be malignant. 3. Other symptoms: benign tumors usually have no other complications, such as ulceration, bleeding, etc., while malignant tumors have more complications. To determine whether the intestinal tumor is benign or malignant, pathological biopsy is needed to draw accurate conclusions. Patients who find intestinal discomfort, or have blood in the stool and other phenomena, should be the first time to the hospital anorectal department, under the guidance of the doctor for enteroscopy, to clarify the cause of the disease, to the cause of surgical resection and treatment, in accordance with the doctor’s instructions.