The hoarseness of children’s voices is related to excessive use of the voice, and may also be due to vocal polyps, acute laryngitis and other diseases. 1. Excessive use of the voice, if the children often shout or talk too much may lead to voice irritation, so the hoarseness of the voice symptoms. 2. Vocal polyps, if already present, the gradual increase in size of the polyp may affect the blood circulation and normal function of the vocal folds, and this symptom may occur. 3. Acute laryngitis, some patients with acute laryngitis increased secretions in the throat, which may lead to congestion and edema of the vocal cord tissues, so this symptom will occur. Children hoarse voice, there may be other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.