Abstract
Irritable bowel syndrome (IBS) is one of the most common syndromes seen by gastroenterologists and primary care providers. The purpose of the present study was to review records of Saudi adult patients who suffer from irritable bowel syndrome in King Khalid hospital, and to identify relationship between The Irritable bowel syndrome and age, gender, eating habits, psychological problems and education and family history. for my study research the Irritable bowel syndrome more conman in adult male more than adult female .there is no relationship between the Irritable bowel syndrome and family history. The Irritable bowel syndrome is not associated with psychological problems. The most common presentation abdominal pain (87.5%), bloating (81.2%), and diarrhea (56.2%). All Patients have problems with eating habits, and they need to education.