Pediatric hydrocephalus disease belongs to a congenital disease, after the occurrence of such a disease may lead to the child’s premature death, the occurrence of the disease leads to children with mental retardation often headache dizziness limb weakness, so for pediatric hydrocephalus disease we should pay more attention to early treatment, then first understand the symptoms of pediatric hydrocephalus disease is very necessary. Hydrocephalus is caused by intracranial diseases that lead to increased cerebrospinal fluid secretion or (and) circulation, absorption disorders and increased intracranial cerebrospinal fluid stock. Clinical children mostly see enlarged skull, enlarged fontanelle, tense fullness, cranial suture dehiscence healing incompatibility, sunset eyes, vomiting, convulsions, language and motor disorders, and mental retardation; adults mostly see intermittent headache, head swelling, head sinking, dizziness, tinnitus and ear blockage, vision loss, and limb weakness. Ren Wenqing, Department of Neurosurgery, Naval General Hospital Hydrocephalus mainly manifests as rapid and progressive enlargement of the infant’s head several weeks or months after birth. The infant is depressed and cannot lift the head. In severe cases, the infant may suffer from brain dysfunction, including epilepsy, visual and olfactory impairment, nystagmus, strabismus, limb paralysis, and intellectual impairment. In infants, headache, vomiting and optic nerve papilledema are not obvious because of compensatory enlargement of the skull. In adults, intermittent headache, head swelling, head sinking, dizziness, tinnitus and ear blockage, loss of vision, and weakness of limbs are more common. What are the clinical manifestations of hydrocephalus 1, non-traffic hydrocephalus (obstructive hydrocephalus): due to obstruction of the ventricular system, the site of obstruction is mostly at the narrowing of the ventricular system, such as the interventricular foramen, the aqueduct or the exit of the fourth ventricle, etc. The ventricular system below the obstruction can be significantly enlarged. 2.Traffic hydrocephalus: There is no obstruction between the ventricle and the subarachnoid space, because the cerebrospinal fluid absorption disorder or excessive secretion causes a large accumulation of cerebrospinal fluid in the ventricular system or the subarachnoid space, or in some patients because the obstruction site is more distal after the cerebrospinal fluid flows out of the ventricle, mostly in the basal area; cerebrospinal fluid can flow to the occipital pool and the spinal subarachnoid space, but cannot reach the subarachnoid space on the curtain, that is, the brain In this way, the cerebrospinal fluid cannot be absorbed by the arachnoid granules. The infant is irritable, vomits, and is tired. The enlargement of the cranium appears several weeks after birth and is usually detected at 3-5 months of age, but there are also cases where the cranium is enlarged at birth. The main clinical manifestation is the progressive abnormal enlargement of the head caused by the increase of intracranial pressure, which is disproportionate to the circumference development. The frontal part protrudes forward, the fontanelle enlarges and bulges, the cranial suture widens, the top of the head flattens, the hair is sparse, the scalp veins become angry, the facial skull is obviously smaller than the skull, the skull thins, and the “melon ripening sound” similar to the ripening of watermelon can be heard on percussion, and in the late stage, the orbital roof is pressurized and thinned and shifted downward, so that the eye is pressurized and rotated downward and the upper sclera is exposed in a In the late stage, the orbital apex is thinned and shifted downward, so that the upper sclera is exposed and “sunset”. Because the bone suture is not closed in infants and young children, compensatory enlargement of the head can occur when intracranial pressure is increased, and thus the symptoms of increased intracranial pressure can be insignificant in the early stage. However, when hydrocephalus is severe and progresses rapidly, it can also appear, and its symptoms are repeated vomiting. Children may also develop degenerative brain changes, central paralysis of the limbs, blindness due to optic nerve compression and atrophy, intellectual changes and developmental disorders, and often other body malformations. Pediatric hydrocephalus disease is really common in real life, after the occurrence of such a disease not only endangers the health of children, but also brings pain and suffering to parents is relatively large, parents are very painful and worried after the discovery of hydrocephalus disease in children, I hope that we parents can understand the symptoms of hydrocephalus disease, so as to facilitate the timely treatment of children when the disease appears.