What Bowel Cancer Cause. Not all will turn cancerous, but if your doctor finds any, they Abdominal pain is a key sign of bowel cancer, while bloating and constipation are signs of a bowel obstruction, which can be caused by a tumourCredit: Getty Images. Bowel cancer, also known as colorectal cancer, develops from the inner lining of the bowel and is usually preceded by growths called polyps, which may become invasive cancer if undetected.
Bowel cancer is currently the third most common type of cancer in the world. Bowel cancer occurs when the cells of your large intestine (rectum and colon) grow and divide abnormally, leading to malignant tumours. They develop on the inside lining of the colon and become cancerous over time if left untreated.
Polyps can become the cause of bowel cancer.
Bowel cancer occurs when the cells of your large intestine (rectum and colon) grow and divide abnormally, leading to malignant tumours.
These can develop into bowel cancer over the course of years. Most colorectal cancers arise from adenomatous polyps. Most bowel cancers result from cancerous change in polyps known as adenomas that develop in the lining of the bowel.
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