Premature closure of the cranial sutures, also known as cranial stenosis or stenocraniosis, is a collective term for a group of disorders in which the cranial sutures in different parts of the skull close prematurely, affecting the normal development of the skull and the brain, thus giving rise to a group of diseases. What are the diseases that can be easily confused with it?1. Microcephaly is a small head deformity due to primary brain development disorder, and the head has not been enlarged accordingly, not the premature closure of the cranial sutures restricts the development of brain tissue, and its cranial sutures are also closed for secondary craniosynostosis. Patients often do not have increased intracranial pressure manifestations, mental retardation is more obvious. x-ray examination of the density of the bone seam can be normal or no increase in cerebral gyrus traces of intracranial hypertension signs. 2, cranial suture cracking due to the child’s skull is mostly fibrous healing, brain tumors lead to increased intracranial pressure cranial suture can be cracked to make the head circumference, parents inadvertently knocking the head of the child can be heard to break the sound of the kettle. Therefore, when the child’s head circumference is found to be significantly larger than the surrounding children of the same age, parents should pay attention to it.3, head enlargement due to increased intracranial pressure caused by progressive abnormal enlargement of the skull, and the circumference of the body development is not proportional. The forehead protrudes forward, the orbital apex is pressurized downward, both eyes look downward, the eyes turn downward, causing the upper part of the sclera to show white, the fontanel is enlarged and the tension is increased, other fontanels can also be enlarged, the skull bone suture is separated, the veins of the scalp are dilated, the bone suture of the infants and children is not closed, the skull can be compensated for the enlargement of the increased intracranial pressure.4, triangular head deformity frontal suture is closed, the forehead is small, and the middle and back part of the skull is overgrown, so it is called the triangular head deformity. Triangular head deformity is the facial symptom of pediatric craniofacial dysostosis syndrome. Cephalo-facial dysplasia deformity at birth is boat-shaped head, triangular head, short head and other deformities, some may have open fontanel, sagittal and herringbone suture fissure and cerebral hypoplasia, facial narrowness, eagle’s beak nose, small jaw, mouth cleft is small, auricular anomalies, etc., so it is also known as the bird face deformity syndrome. 5, the long head of the giant brain pediatric megalencephaly syndrome, is in the infants and young children and school-age children, the skeleton development growth overgrowth, skull The syndrome is characterized by rapid skeletal growth, huge head, and delayed intellectual development in infants and school-age children. This syndrome is characterized by significant growth of body development in the neonatal period, long head and huge brain, delayed mental development, peculiar facial features and abnormal limb morphology.