This time,he suffered from anal bleeding for tow month and body weight loss around 2kg within half a month .First he came to our GS OPD for help,who suggested colonscopytransfer to GI OPD follow-up.He denied systemic as hemorrhoid history or took analgesicagent or steroid.Accompanied fullness and rectal tenesmus suffered usually.He accepted colonscopy performed smooth toady and colonic biopsy for cancer in the descending colon.Under impression of suspect colonic cancer,so he was admitted to our ward for further care