Yes, you should talk to a doctor about your baby's congenital hydrocephalus symptoms. Hydrocephalus is serious and requires medical attention. If you notice any of the typical symptoms of hydrocephalus in your baby, such as if your baby has an unusually large head, your baby's head suddenly increases in size, or the soft spot on top of your baby's head is bulging, you should contact your doctor right away. If your baby is irritable or lethargic, these are also symptoms that you should discuss with your doctor. Some of the more severe symptoms of hydrocephalus, such as persistent vomiting and seizures, require emergency care. You should seek immediate medical attention if your baby is suffering from these kinds of symptoms.