How common is headache in concussion?

A concussion is a brain injury that can follow a blow, jolt, or sudden movement of the head. Headache may feel like pressure, throbbing, or a general ache, and it can begin soon after the injury or become noticeable later. Other symptoms can include light or noise sensitivity, dizziness, slowed thinking, memory trouble, irritability, or unusual tiredness.

A headache after an injury needs context. A scan may be normal in concussion, and symptoms can overlap with other injuries or pre-existing headaches. Anyone with a possible concussion should have their symptoms and injury assessed, particularly if the headache is new or changing.

Stop the activity that caused the injury and arrange medical advice. In the early period, keep activity gentle and limit anything that clearly worsens symptoms, including screens, bright light, or strenuous exercise. Do not return to driving, contact sport, or hazardous work until a clinician says it is appropriate. Have a responsible adult check on you if advised, and avoid alcohol or sedating medicines unless a clinician has approved them.

Seek emergency care for a worsening or severe headache, repeated vomiting, increasing drowsiness, confusion, seizure, fainting, new weakness or numbness, slurred speech, unequal pupils, or fluid or blood from the nose or ears. Urgent assessment is also needed after a significant injury or if you take blood-thinning medicine. Do not wait for symptoms to disappear when warning signs are present.

Ask whether your symptoms are consistent with concussion, which activities are safe today, and how to pace a return to school, work, exercise, or driving. Ask which pain medicines are suitable and which changes should trigger emergency care.