Premature closure of the cranial suture, also known as cranial stenosis or narrow craniosynostosis, is a collective term for a group of disorders in which the premature closure of the cranial suture in different areas affects the normal development of the skull and brain. The incidence in newborns is 0.25/‰, with male patients predominating, accounting for 61% to 80% of the total number of patients, especially in sagittal suture or frontal suture premature closure. How to check the premature closure of cranial suture? 1. Signs and symptoms of increased intracranial pressure. Such as headache, vomiting, loss of vision or even blindness, optic papillar edema or even optic nerve atrophy. 2.Mental confusion and mental retardation. The number of premature closure of cranial suture is directly related to mental confusion. 3, hydrocephalus. Traffic hydrocephalus is common, and obstructive hydrocephalus is also seen. 4.Visual impairment and eye protrusion. There may be single eye protrusion or double eye protrusion, and severe cranial suture premature closure often has optic papillary edema and optic nerve atrophy. 5.Respiratory damage, posterior foramen atresia, snoring and sleep apnea. 6. Premature closure of sagittal suture can lead to navicular head; premature closure of coronal suture can lead to short head deformity, combined with premature closure of other cranial sutures can lead to sharp head deformity; premature closure of coronal suture and frontal suture on one side can lead to frontal oblique head deformity, premature closure of herringbone suture on one side can lead to occipital oblique head deformity, premature closure of coronal suture, squamous suture and herringbone suture on one side can lead to semi-oblique head deformity; premature closure of herringbone suture can lead to obvious flattening of skull base and thickening of occipital bone. Crouzon syndrome (craniofacial dysgenesis), Apert syndrome (ACS type I, typical acrofacial syndactyly, acrofacial syndactyly type I), Vogot syndrome (ACS type II), Saethre-Chotzen syndrome (ACS type III), Warrdenbyrg syndrome (ACS type IV). syndrome (ACS type IV), Pfeiffer syndrome (ACS type V), Noack syndrome (ACSP type I), Carpenter syndrome (ACSP type II, acrofacial syndactyly, polydactyly), Cohen syndrome (craniofacial nasal dysplasia), etc. The efficacy of surgery is directly related to the severity of the deformity and the early or late surgery: after decompression surgery, increased intracranial pressure, reduced visual acuity and mental disturbance can be improved to varying degrees. The patient should be seen in neurosurgery as soon as possible and undergo cranial suture reconstruction or partial craniectomy and decompression surgery.