Vocal cord nodules are benign (noncancerous) growths on both vocal cords that are caused by vocal abuse. Over time, repeated abuse of the vocal cords results in soft, swollen spots on each vocal cord. These spots develop into harder, callous-like growths called nodules. The nodules will become larger and stiffer the longer the vocal abuse continues.
Polyps may be caused by long-term vocal abuse but may also occur after a single, traumatic event to the vocal cords, such as yelling at a concert. Long-term cigarette smoking, hypothyroidism, and GERD may also cause polyp formation.
Nodules and polyps cause similar symptoms:
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