Newborn baby’s nails are not fully formed and will not harm themselves, therefore it is not recommended to cut nails for babies within 1 month, but can be cut after 1 month of life. Newborns’ nails are soft and usually do not harm themselves. If the nails are long, parents can bring small gloves to protect them and then trim them after the newborn period has passed, i.e. after the full moon. Because babies and toddlers love to move, often unintentionally like scratching, it is easy to scratch themselves, and nails with bacteria, scratching easily caused by infection and other situations; and some babies like to eat hands, easy to bring the bacteria in the nails into the body. Therefore, it is recommended that the child’s nails be trimmed regularly after the first month of life. In addition, when cutting the baby’s nails, parents need to try to choose a well-lit place, use special nail clippers, nail edge repair smooth, to avoid children scratch themselves. At the same time, it is best to cut the nails when the baby is asleep, so as not to cut the fingers due to good movement.