Early symptoms of rectal cancer

Rectal cancer is usually asymptomatic in the early stage. When the tumor progresses, the volume increases and affects defecation before symptoms appear, such as changes in defecation habits, anal drop before defecation, and urgency after weight. In addition, when the tumor breaks, it will bleed, which will lead to blood or mucus on the surface of the stool. If complicated with red infection, purulent blood stool can be presented. Further enlargement of the tumor will lead to intestinal stenosis, and the stool discharged presents progressive thinning phenomenon. If it causes partial obstruction of the intestine, symptoms such as abdominal pain, abdominal distension and hyperactivity of bowel sounds will occur.