1. Change in stool consistency or bowel habits: A change in the shape or form of the stool, as well as an increase or decrease in the frequency of bowel movements, may indicate early-stage colon cancer. Blood in the stool can also be a sign of colon cancer.
2. Unexplained weight loss: If an individual experiences weight loss without being on a diet or exercise regimen, especially in middle-aged or older individuals, it could be a precursor to malignant tumors.
3. Rectal bleeding: While rectal bleeding can be associated with various digestive system disorders, the brighter the color of the blood, the lower the origin of the disease.
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