Relative Frequency of Causes of Lower Gastrointestinal Tract Bleeding in Patients Admitted in Besat Hospital of Sanangaj in 1999

Lower gastrointestinal (GI) tract bleeding has different ethiologies in different populations and in different ages. This study was aimed to demonstrate relative frequency of causes of lower GI bleeding in patients admitted in Besat hospital of Sanandaj. This was a descriptive study. The subjects included all patients with lower GI bleeding that were admitted in Besat hospital in 1999. They were 112 patients with age range from 1 to 81 years. Data was collected from the patient`s files. Seventy six patients (67.9%)were male and 36 patients (32.1%) were female. Sixty three patients (56.3%) were town resident and 49 patients (43.8%) were village resident. Ethiology of lower GI bleeding was not diagnosed only in 1 patient (0.9%). Most of the patients had less than 55 years-old-age (76.8%). Nine patients had less than 25 years-old age that was the least freqnency (8.1%) among the age groups.Twenty three patients(20.5%) had another disease associated with lower GI bleeding. The most prevalent chief complaint of the patient was discharge of clear blood from rectum that was present in 29 patients (25.9%)alone. Rectal bleeding was at least one of the patients` complaints in 103 cases (92.7%). Seven patients(6.3%) had no clear rectal bleeding and in five of them the chief complaints were weakness,weight loss and defecation changes. Two of them (1.8%) had melena and abdominal Pain. Fifty eight patients(51.8%) had hemorrhoid in different grades.Hemorrhoid was one of the associated diseases in 68 patients (60.7%). Ten patients(8.9%) had only anal fissure while it was an associated disease in 15 patients (13.6%).Polyps was the cause of lower GI bleeding in 11 patients (10%) while it was an associated disease in 12 patients (10.7%).Colorectal cancer was the cause of lower GI bleeding in 13 patients(11.6%). One patient(0.9%) had both colorectal cancer and hemorrhoid. Inflammatory and infectious colitis were the causes of lower GI bleeding in 6 patients(5.4%).In 2 patients(1.8%) rectal prolapse was the cause of lower GI bleeding. Relative freqnency of causes of lower GI bleeding including colorectal cancer in our study are the same as other researchs.