Headaches Just like grownups, kids can get headaches, whether they be migraines, tension headaches, or cluster headaches. Injuries Head injuries, including concussions, are one of the most common causes of disability in children. Neuromuscular Diseases BMuscular dystrophy is a type of inherited neuromuscular disease. It is most often diagnosed between ages 3 and 6. Other Neurological Conditions These conditions range from infections like encephalitis and meningitis to epilepsy and cancer.