The causes of benign tumors in the intestinal tract are complex, including chemical factors, physical factors, biological factors, poor lifestyle, genetic factors, endocrine factors, immune factors and so on. 1. Chemical factors: such as pesticides, smoke, tar, asphalt, nitrite, fungal toxins, etc. can cause benign tumors. 2. Physical factors: e.g. X-ray, absorption of radioactive contaminated dust, chronic ulcers, etc. 3. Biological factors: for example, viral infections, common hepatitis virus, herpes simplex virus, other biological factors such as Helicobacter pylori, parasitic infections and so on. 4. Bad lifestyle: for example, smoking can cause lung tumors, and drinking a lot of alcohol for a long time can cause digestive system tumors. 5. Genetic factors: it is a common factor to cause tumors, huanai in the immediate family. 6. Endocrine factors: for example, estrogen, prolactin, growth hormone balance disorders can cause tumors. 7. Immune factors: for example, congenital or acquired immunodeficiency can induce benign tumors. There are many other causes of benign tumors in the intestinal tract, it is recommended to consult a doctor in a timely manner, under the guidance of the doctor to determine the treatment plan, to avoid blindly using their own medication.