My son was born with hydrocephalus. He's 11 months old now and had shunt surgery at 3 days old. Doing fabulous. I haven't met anyone else with a child with or who has hydrocephalus themselves. No one on either side of our family has it. Dr's did genetic testing and said it is typically a genetic condition but does not have to be. We found out his case was not genetic therefore the chances of his children having it are the same odds as any other person.