The flattening of the back of the head is mainly corrected by changing the sleeping posture, according to the age level, the details are as follows: 1, adult patients: if there is a flattening of the back of the head, it is usually impossible to correct, mainly because the bones are already set and there will not be any changes. 2, infant patients: the flattening of the back of the head is usually caused by long-term fixed sleeping posture, frequent changes in sleeping posture can make the skull redevelop, improve the flattening of the back of the head The treatment effect can be seen in about 2-3 months. Infants and children with flattened back of the head must be treated early to avoid incurable skeletal deformation, resulting in significant changes in shape and affecting normal brain tissue development.