Abstract Colorectal carcinoma by colonoscopy in Jordan Retrospective study 1996-2000 Al Bashir Hospital experience Dr.K.Lutfi, W.Hamoudi, S.Yaqub, N.Ziyadat, W.Balker, H.Abu-Hasan, .M.Ayoub Department of Internal Medicine, Gastroenterological unit OBJECTIVES: A retrospective study of all the cases of colorectal carcinoma diagnosed by colonoscopy in Al Bashir Hospital, between the years 1996-2000 SUBJECTS AND METHODS: All the patients with colorectal carcinoma diagnosed by colonoscopy and confirmed by histology. Main .symptoms, age groups, distribution of CRC and histology were recorded RESULTS: From 2330 colonoscopies done in between 1996-2000, 149 (6.3%) patients were diagnosed with colorectal carcinoma. 80 patients (53.6%) were male, while 69 (46.3%) were female. The main affected age group was between 61-70 years (26.8%), followed by patients between 51-60 years (24.6%), while the less affected group was those between 0-10 years (0.6%). Main symptoms were dominated by rectal bleeding (33%) followed by constipation (31.5%), less frequent symptom was recorded as bloody diarrhea (10.7%).Most affected area in the colon was sigmoid colon (39.5%) followed by rectum (22.8%), while less affected was anorectal area (1.3%). Adenocarcinomas were the most common histological type (91.9%), while squamous cell carcinomas and .(Melanocarcinomas were the less frequent histological types (0.60% CONCLUSION: Our statistical results from this study are similar with the western and European statistical data regarding male/female distribution, age group incidence, main symptoms, distribution of CRC .within the large intestine and histology