Hoarseness, as the name implies, is a clinical manifestation due to problems with the vocal cords. Common causes of hoarseness include many, such as chronic laryngitis as well as vocal fold polyps, vocal fold nodules, laryngeal cancer, vocal fold leukoplakia, and vocal fold keratosis, all of which may cause hoarseness. First, a laryngoscopy at the hospital is needed to clarify the diagnosis. If it is chronic laryngitis, it can be seen that the vocal folds are congested and edematous bilaterally, and the vocal folds can still move, only that there are thin slits when they are closed. Anti-inflammatory treatment and silencing of the vocal cords will heal in about a week. Vocal cord nodules and vocal cord polyps or laryngeal cancer. This is a tumor of the vocal cords. The diagnosis should be made by pathology first and then treated by surgery. If it is a small node or polyp, it can usually be cured. However, laryngeal cancer depends on the pathological classification and the degree of spread.