Vocal cord nodules refer to symmetrical nodular elevations that appear on the free edges of both vocal cords. These nodules are mostly grain-like or granular protrusions. Vocal cord nodules are often caused by incorrect pronunciation, overuse of the voice, or screaming loudly, which are inappropriate vocal habits. Generally, most vocal cord nodules will disappear on their own after resting the voice, speaking less, and using the voice correctly. Therefore, as explained above, vocal cord nodules do not require surgical treatment. Surgery is only necessary if the vocal cord nodules continue to develop uncontrollably, evolving into vocal cord polyps or other pathological changes.