Patient: Description of the condition (onset time, main symptoms, hospital visited, etc.): Congenital premature closure of the cranial suture causes head deformity in infants, the front and back of the forehead protrude, the head cannot develop laterally, so the child’s head is flat and long, and the diagnosis is premature closure of the cranial suture – navicular head. How to treat the disease, will there be sequelae after the head surgery? Is there any effect on the development of the child? Zhang Zhiyong, Department of Plastic Surgery, Chinese Academy of Medical Sciences: The navicular head deformity is mainly due to premature closure of the sagittal suture, which mainly affects the shape of the skull, and the chance of intracranial pressure increase is very small, and will not have much impact on the cranial development. If the deformity is not obvious, it can be left untreated, otherwise, the diseased sagittal suture should be removed surgically to loosen the cranial cavity and reshape the skull. The best time to operate for premature sagittal suture closure is when the child is about 10 months old, and if the operation goes well, it will not leave any sequelae and will not affect the child’s development.