It is a condition caused by excessive accumulation of cerebrospinal fluid in the cranial cavity. Hydrocephalus is characterized by two types: Congenital and postnatal . Congenital and acquired. Congenital or congenital hydrocephalus develops as a result of infectious diseases, trauma and maternal toxicosis during pregnancy . Acquired or postpartum hydrocephalus may result from bacteria or inflammation of the meninges and brain, or head trauma, Or birth injuries in newborns. Failure of fontanelles to close for 16 months contributes to the identification of congenital hydrocephalus. in hydrocephalus, The anterior and parietal protrusions are sharply protruding, The eyes are swollen and widely spaced. the bones of the skull are sharply weakened, The cranial stitches expand, They often diverge. Children with hydrocephalus often suffer ., especially congenital, of cerebral palsy, mental disorders, and varying degrees of intellectual disability. hydrocephalus, can be complicated by hearing and vision impairment, Even deafness and blindness.