Neonatal hydrocephalus is the result of excessive production or impaired absorption of cerebral crest fluid, which accumulates in the ventricular system or subarachnoid space and continues to grow, increasing pressure and enlarging the ventricles. Clinical manifestations of hydrocephalus, mainly for the infant weeks or months after birth, rapid and progressive cranial enlargement (normal infants as early as 6 months head circumference (occipital forehead) growth of 1.2-1.3cm per month, the disease can quickly increase its 2-3 times), while the skull is rounded, frontal roof protrusion, fontanelle expansion bulge, cranial suture do open, skull deformation, percussion “broken pot sound “The child’s hair is sparse, the temporal frontal veins are dilated, the eyes are downwardly rotated, the upper sclera is often exposed, and the eyes are sunset-like. The child is depressed, cannot lift the head, and in severe cases, it may be accompanied by brain dysfunction, manifested as epilepsy, vomiting, convulsions, strabismus, nystagmus, speech disorders, limb paralysis, ataxia, walking difficulties, and mental underdevelopment.