The objectives of this observational study is to study demographic profile, epidemiological factors, clinical presentation, disease characteristics, complications and treatment of elderly onset inflammatory bowel disease patients above 60 years old visiting Outdoor patient Department and  Indoor Patient Department of School of Digestive and Liver Disease (SDLD), Institute of Post Graduate Medical Education & Research (IPGMER), KOLKATA and to compare those characteristics of elderly onset Inflammatory Bowel Disease with those of adult-onset Inflammatory Bowel Disease. The Study period is 1 year and study population are all patients with confirmed diagnosis of Inflammatory Bowel Disease (established on the basis of ECCO-ESGAR Guidelines [clinical, laboratory, radiological, and pathological]) visiting the Outdoor patient Department and  Indoor Patient Department of School of Digestive and Liver Disease (SDLD), Institute of Post Graduate Medical Education & Research (IPGMER), KOLKATA .Sample Size is 65 elderly onset Inflammatory Bowel Disease patients and 130 Adult-onset Inflammatory Bowel Disease patients. Patients with complete medical histories and Inflammatory bowel disease confirmed by pathological, radiological, clinical and endoscopic diagnosis, adult-Onset Inflammatory bowel disease patients with presentation at age 18 years upto 60 years and elderly onset Inflammatory bowel disease patients 60 years and older at the time of presentation and willingness to provide informed consent to participate in the study are included in the study and patients with onset of presentation less than 18 years of age, unclassified Inflammatory Bowel Disease , patients with missing data ,patients unable to undergo endoscopy due to co-morbidities or an unwell clinical state and those who failed to provide consent are excluded.