The most common cause of hoarseness in newborns is the hoarseness caused by the baby’s violent crying. The mother does not need to worry at this time, because the baby’s vocal cords are still in the process of development, so vigorous crying can easily cause local edema of the vocal cords. This is the time to try to avoid your baby’s violent crying. When the baby cries, give the baby appropriate soothing, relieve the baby’s bad mood, strengthen the feeding to ensure that the body sufficient moisture, indoor environment must be kept moist, which will help the vocal folds local swelling quickly, most of the 3-4 days as long as the above aspects of attention, the vocal folds can gradually reduce the swelling. When the local edema of the vocal cords subsides, the hoarseness of the baby’s voice will gradually improve.