Doll hoarseness may be caused by improper use of voice, vocal cord nodules, vocal polyps, laryngeal cartilage dysphonia, laryngeal webbing and other factors, it is recommended that timely medical treatment, targeted treatment. 1. Improper use of voice: such as frequent shouting, talking more, causing the vocal folds edema, hypertrophy, can appear hoarse. Generally after rest, most of the symptoms can be improved on their own. 2. Vocal cord nodules, vocal cord polyps: due to long-term bad pronunciation habits lead to the growth of vocal cord nodules or polyps, the vocal folds close incompletely, thus causing hoarseness. It needs to be combined with electronic laryngoscopy to understand the size of the lesion, and children are usually treated conservatively with medication, and after puberty, if there is still no relief, surgery can be considered. 3. Laryngeal cartilage dysphonia, laryngeal webbing: this condition is considered to be related to congenital underdevelopment of children, in addition to hoarseness may also have breathing difficulties, laryngeal tinnitus and so on. You need to go to the hospital as soon as possible, to clarify the cause, symptomatic treatment! If your baby has hoarseness and it is not relieved or accompanied by other discomforts, you should consult a doctor to identify the cause of the disease and follow the doctor’s instructions for appropriate treatment.