Concussion | Johns Hopkins Medicine

A blow or a jolt to the head can cause a concussion or traumatic brain injury (TBI). The injury keeps the brain from working normally. Symptoms of a concussion may last less than a day or may linger for months, or longer.

Many concussions that require emergency treatment are because of falls, motor vehicle accidents, assaults, and sports injuries. Children, young adults, and older adults are at especially high risk for concussions and may take longer to recover after a concussion. People who have had concussions before are more likely to have them again.

Call your healthcare provider right away or go to the emergency room if you or someone else loses consciousness after a blow to the head or if any of these occur:

  • Headache that gets worse and does not go away
  • Weakness, numbness or decreased coordination
  • Nausea or vomiting
  • Slurred speech
  • Feeling very confused
  • Feeling very drowsy
  • Convulsions or seizures

These could be signs of a serious condition that needs treatment right away.

JH Concussion | Johns Hopkins Medicine