You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Most common cause of lower gastro intestinal bleeding is; and explain in detail?
(Colo.rectal carcioma) (1310-CSDT 12th) (1160-B &L 25th)* Although diverticulitis, cancer and / angiodysplasia are the most common cause of lower GI bleeding in adults (1310-CSDT 12th)* Diverticular diseases (Very common in western countries, though it is quite rare in this country (1104. S.Das 5th)Diverticulitis (1161-B&L)Symptoms and signs of colorectal cancer (1178-B & L)Complications1. Recurrent periodic abscess2. Perforation leading to general peritonitis3. Intestinal obstruction4. Haemorrhage - profuse colonic haemorrhage5. Fistula formation Diverticulitis is not a precancerous conditions but cancer may coexist* Right sided tumour - Iron deficiency anemia, abdominal mass* Left sided tumours - rectal bleeding alteration in bowel habit, tenesmus obstruction* Metastatic disease - Jaundice, ascitis, hepatomegaly, other symptoms and sign from rarer sites of metastasis.* In Infants - anal fissures continue to be the most common cause of rectal bleeding.* Juvenile polyps - are the single most common cause of lower GI bleeding in children (20-30%)