Baby picking the navel child first to determine whether there is a problem of curiosity, and then to determine whether there is an inflammation of the navel. 1. baby’s curiosity: first of all, consider the baby may have a curious mind, want to understand what kind of structure of the navel, at this time the parents can give the child to explain the structure of the navel, explaining the navel is in fact in the fetal period through the placenta and the fetus connected to a channel, providing fetal nutrition. 2. Whether there is inflammation of the navel: when there is localized inflammation and infection of the navel, the patient can appear red, swollen and painful accompanied by an itchy feeling, the baby through the action of picking the navel to alleviate the itching problem. Baby picking at the navel may also have other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, give targeted treatment or treatment.