Polyps are abnormal tissue growths, usually presenting as flat bumps or tiny mushroom-type stalks less than half an inch wide. Non-neoplastic polyps consist of hyperplastic polyps, inflammatory polyps, and hamartomatous polyps. These types usually do not become cancerous. Neoplastic, adenomas, and serrated polyps are often larger and carry a higher risk of malignancy.
The colon is the most common location for polyps, though they may also grow in the ear canal, nose, throat, or stomach. The cervix and uterus are also prone to these growths.
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