What are the early symptoms of colon cancer?(1) Change in bowel habitsFrequent defecation, diarrhea, constipation, alternating constipation and diarrhea, incomplete defecation, anus swelling, and changes in the shape of the stool (thinning of the stool, and marks in the discharged stool).
(2) Mucoid stool or mucopurulent bloody stool:
Due to the friction of feces, if the surface of the tumor in the intestinal cavity is penetrated and bleeding occurs, it is easy to produce light or light red bloody stools.
Because early-stage tumors are relatively small, the incidence of bloody stools is relatively low or only occurs intermittently.(3) Abdominal bloating and indigestion:
When tumors in the colon develop to a certain extent, they can cause intestinal obstruction, abdominal distension, abdominal discomfort, and intermittent abdominal pain.
(4) Systemic symptoms such as anemia, low-grade fever, fatigue, edema, and unexplained weight loss:
These systemic symptoms are common to many cancers and even non-cancer diseases. They are not specific and are most easily ignored.
What are the causes of colon cancer?Like other cancers, the cause behind colon cancer is not clear, but some related risk factors have been initially clarified, including the following four points:
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