In young children, hydrocephalus may be due to:
• Infections that affect the central nervous system (such as meningitis or encephalitis), especially in infants
• Bleeding in the brain during or soon after delivery (especially in premature babies)
• Injury before, during, or after childbirth, including subarachnoid hemorrhage
• Tumors of the central nervous system, including the brain or spinal cord
• Injury or trauma