What causes pain under the navel?

Men bellybutton pain, generally considered to be caused by enteritis, patients are generally accompanied by diarrhea, nausea, vomiting, bloody stool and other symptoms; secondly, may also be dyspepsia, intestinal obstruction, gastritis, gastroptosis, early appendicitis and other diseases caused; in addition, if the patient accompanied by frequent micturition, urgency, urine and other symptoms, can not be ruled out is prostatitis, prostate hyperplasia and other diseases caused. Patients need to go to the hospital gastroenterology department to see a doctor, do enteroscopy, gastroscopy, abdominal color Doppler ultrasound, stool routine examination and other examinations to make a clear diagnosis. If the diagnosis is caused by enteritis, drug sensitivity tests need to be done, and sensitive anti-infective drugs should be selected for treatment.