Cold sores are small blisters around the mouth caused by the herpes simplex virus. Once a child is infected with the virus, the virus becomes inactive (dormant) for long periods of time. It can then become active at any time and cause cold sores.

An electroencephalogram (EEG) is a test that measures the electrical activity in the brain (brain waves). Small, round discs with wires (electrodes) are placed on the scalp during the test. The electrodes are not painful to your child.

Evaluating and diagnosing damage to the nervous system can be complicated. Many of the same symptoms occur in different combinations among the different disorders, and many disorders do not have definitive causes, markers, or tests.

Detailed information on the most common diagnostic tests for neurological disorders in children

Cerebral palsy (CP) is a lifelong condition that affects how the brain and muscles communicate. CP affects body movement, muscle control, coordination, reflexes, posture, and balance.

Detailed information on the most common congenital and hereditary disorders in children

A Chiari malformation (CM) is a problem with how the brain sits in the skull. Read on for detailed information about this condition in children.

A diaphragmatic hernia is a birth defect. It happens in a baby during pregnancy. In this condition, there’s an opening in your baby’s diaphragm. This is the muscle that separates the chest cavity from the abdominal cavity.

Detailed information on the most common digestive disorders in high-risk newborns

Detailed information on the most common disorders of the brain and nervous system in high-risk newborns