Abstract
Abstract: Bleeding can be as a result of erosion in the lining of the stomach or duodenum. Cancer or polyps in the colon and rectum can commonly lead to bleeding. The aim of this study is to determine the percentage of positive cases tested for occult blood and to compare the performance characteristics of two different reagents. A 283 specimens were tested for occult blood in feces. The results obtained showed a confliction which may be due to poor or inadequate patient preparation for the test which lead to the occurrence of false positive or negative results. Key words: Peptic ulcers, colorectal cancer, faecal occult blood