Why do vocal cord polyps bleed?
Vocal cord polyps are a cold-natured and space-occupying lesion located on the vocal cords, usually occurring unilaterally. Clinically, they primarily present as hoarseness. Examination can reveal a polyp-like neoplasm protruding from the surface of one vocal cord. There are two reasons for bleeding in vocal cord polyps. One is intense coughing or other mechanical injuries that cause bleeding on the surface of the polyp, due to damage to the vocal cord mucosa, among other factors. The second is that these polyps are hemorrhagic, possessing a rich supply of blood vessels, referred to as hemorrhagic polyps, which are prone to bleeding. Another scenario is post-surgical bleeding due to mucosal damage, friction, or other factors following surgery for vocal cord polyps, primarily involving these three factors.
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