Recurrent abdominal pain (RAP) is a common problem in children and adolescence. The functional abdominal pain is the most common cause of RAP. The conceptual models of RAP are multivariate and acknowledge the contributions of a variety of biological, psychological, and social factors. Among the 6-7 year-old population of Bushehr port, 485 (50.1% male, 49.9%female) children starting primary school were randomly selected. Questionnaires were completed by direct interview during the National Program of Health Surveillance of Schoolchildren in 2000. According to Apley's criteria, 49 children had RAP (9.1% male and 11.2% female). Abdominal pain pattern such as frequency, duration, location, radiation, associated symptoms was relatively similar to other investigations. The signs of environmental reinforcement of pain behavior such as specific attention and medication at time of pain were commonly observed (32.6% and 71.4%, respectively). Prolonged duration of involvement (73.5%, more than one year) and frequent referral to physician (30.6%, at least three referral) were detected. Some psychosocial stress such as father unemployment and history of irritable bowel syndrome (IBS) in parents were significantly more frequent in RAP group (p values= 0.038 and 0.01, respectively). History of RAP in siblings and appendectomy, peptic disease and migraine were mildly more frequent in RAP group. Separation of one of the parents, change of address, parent education and mother employment, sibling number and order and weight and height had not significant differences between two groups. Among 22 patients, giardia cyst was detected in the stool of 4 patients (18.2 %). In conclusion, RAP is a common problem in Bushehr port and its pattern was relatively similar to other regions. The father unemployment and the history of IBS in parents, two psychosocial stresses, were associated with RAP