<prompt> Answer this question truthfullyWhat are the factors that increase the risk of radiation-induced proctitis?  <response>: <reason> Common risk factors in the development of radiation proctitis are the diseases that may increases the susceptibility of mucosal injury by radiation are: HIV Immunosuppresion Inflammatory bowel disease History of smoking Diabetes Mellitus Hypertension History of atherosclerosis Younger age Concurrent treatment Previous abdominal surgery Malnutrition Tumour stage Genotypic susceptibility to radiation toxicity 