Small abdominal pain cannot be fully diagnosed as enterocolitis. The small abdomen includes many organs, such as the colon and the genitourinary system, all of which are in the small abdomen, so small abdominal pain can involve diseases of several departments. Gastroenterology is the colon here, and if it is accompanied by diarrhea, pus and blood mucus stools, etc. it could be enterocolitis. In addition, if there is pain in the lower abdomen, accompanied by urgency, frequency and painful urination, it may be a disease of the urinary system. For women, there may also be gynecological diseases, such as uterine cavity infection, endometriosis, pregnancy and pelvic inflammatory disease, and other diseases of the female system. The pain in the small abdomen is not only due to enteritis, but also due to the symptoms, which should be combined with the ultrasound of the abdomen or CT of the abdomen to further clarify what kind of disease is causing the pain in the small abdomen.