Alvine cancer includes colonic cancer and rectum cancer, it is the cancer that a kind of inchoate symptom concealments, mix easily with a variety of disease photographs confuse, alvine cancer grows slower, have longer time be confined to local, inchoate discovery but handArt effects a radical cure. Data shows, about 3 is mix because of the doctor to 4 become alvine cancer patients of patient itself unwary and by by accident examine. Drop with year after year of major cancer incidence of a disease contrary, the incidence of a disease of cancer of the bowel on the worldwith year all the rate of 2% rises, and the investigation of Shanghai shows, of incidence of a disease of cancer of our country bowel add fast double be world average level, achieve year all 4% . Alvine cancer is inchoate have the following show.

N/med having blood in one's stool: Alvine cancer is inchoate pathological changes is confined to mucous membrane, can not have a symptom, or only defecate is used to a change. When tumor grows to certain level, can appear n/med having blood in one's stool, color is much lighter dark, conglutinate at defecateThe surface. Check of lens of excrement and urine can discover red blood cell, experiment of defecate occult blood shows masculine gender. To having blood or continuously patient of positive of defecate occult blood, should consider above all have large intestine the likelihood of tumor, should do fartherRelevant examination;

Mucus mixes purulent blood: When cancerous swollen burst, defecate middling is contained bright red or dark red blood and mucus, and mucky blood interblend;

Defecate is used to a change: Defecate frequency by original become 3 times two everyday, there is defecate never-failing feeling after defecate ends every time;

Diarrhoea or constipation are alternant: If diarrhoea and constipation appear alternately,wait for a symptom, because the growth of cancerous tumor affected the normal physiology function that bowel,may be, should consider canceration likelihood;

Bellyacke and abdominal distension: Alvine cancer patient is met because of alvine road block abdominal distension, bellyacke, the occurence rate with the more abdominal distension occurence rate with its painful middle is high. Abdomen falls in aching place is in more, degree weight is differ, it is concealed more
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