I have a 2 and 5 month old who bumped the back of his heard quite badly yesterday jumping on the bed. we placed ice on the affected area and managed him from home. today he has complained about headache and we just gave him calpol.

About head bonks: Children often hit their heads on things. If a child is behaving differently after a mild injury, she should be evaluated by her primary doctor. Sometimes an emergency room visit is needed, depending on the symptoms. Head bumps in which there is low-impact on the head, little crying, no changes in behavior and no headache after the first hour, etc..., usually don't cause internal injuries.