Pits on the baby’s head, pay attention to some of the following problems: First, vitamin D deficiency rickets, before the baby’s third month will appear softening of the skull, when pressed will find that the skull is softer, can be pressed out of the pits, ping-pong ball-like feeling. Secondly, there are two places in the baby’s skull that are not completely closed during infancy, namely the fontanel and the posterior fontanel. The anterior fontanel is a diamond-shaped defect at the top of the head, which closes around the age of one to one and a half years. If the hair is bald, parents can see a concave and convex manifestation of the fontanel. The posterior fontanel is in the occipital region, and it is not completely closed after birth, especially more obvious in preterm babies, and the time of closure is about 2-3 months. Thirdly, we should also pay attention to whether it is due to the baby has had head trauma, because the baby’s skull is still relatively soft, there can be a pit in the head, so we suggest that it is best to go to the hospital, to clarify the cause of the disease and then give relevant guidance.