A hoarse throat after singing may lead to vocal cord disorders such as acute laryngitis, chronic laryngitis, vocal cord nodules, and vocal cord polyps. 1. Acute laryngitis: Excessive use of the voice can lead to acute laryngitis, causing hoarseness, coughing, sore throat and other symptoms. 2. Chronic laryngitis: If you use your voice excessively for a long time, chronic laryngitis may result. At this time, the mucous membrane of the vocal folds will be chronically congested, swollen, and even hypertrophied. This can lead to the symptoms of a muffled voice. 3. Vocal cord nodules: Excessive use of the voice can lead to vocal cord nodules generally occurring in the front of the vocal cord in the middle 1/3 of the junction. This can lead to a muffled voice. 4. Vocal polyps: improper or excessive vocalization can lead to, or because of a strong vocal polyps caused by the vocal folds, resulting in hoarseness. If you find your voice hoarse after singing, you should consult a doctor in time to get a clear diagnosis and treatment. Pay attention to rest on weekdays, avoid excessive use of the voice, quit smoking and drinking, and eat a reasonable diet.