ABSTRACT
The causes of non traumatic abdominal pain are varied from mild to severe onset. This study was carried out to assess the outcome of the patients with non-specific abdominal pain discharged from the emergency department. This cohort study was carried out on 247 patients [68.4% female, 31.6% male] with non-specific abdominal pain which referred to the emergency department of Imam Hossain hospital in Tehran, Iran during 2010-11. The existence or improvement of pain, readmission to hospital and possible subsequent complications diagnose and death was recorded after four-week through telephone follow-up. 247 patients with non-specific abdominal pain were enrolled. Out of 158 patients with recurrence pain, 71 [45%] patients were admitted to the hospital again that finally, cause of pain was diagnosed in 45 [28.5%] patients. The most common cause of abdominal pain was irritable bowel syndrome [3.2%]. History of similar pain [OR=4.04, P<0.05], abnormal findings in abdominal ultrasonography [OR=8.2, P<0.05], abnormal urine analysis [OR=7.4, P<0.05] and abdominal pain persisted for more than 2 days [OR=4.04, P<0.05] were independent factors to identifying the causes of abdominal pain. Nonspecific abdominal pain will not lead to appropriate recognition and most of them recover without any complication