“…as a presenting or major symptom in 21-6% of 111 cases; Bacon and Sherman (1950) noted an incidence of 18% in 117 cases. Noer (1955) assessed the incidence of macroscopic rectal bleeding in 2,896 recorded cases of diverticulosis and diverticulitis and found it to be at least 11 %, but in his own series of 68 cases 29 % had bleeding as a presenting or major symptom. In a similar survey Rushford (1956) found that haemorrhage occurred in 17 % of 6,000 recorded cases of diverticulitis and in a personal series of 120 cases bleeding had been a symptom in 27.5% of the cases.…”