Skip navigation
   Other Topics: A B C D E F G H I J K L M N O P Q R S T U V W XYZ All Topics

Concussion

Also called: Brain concussion 
 
 

A concussion is a type of brain injury. It's the most minor form. Technically, a concussion is a short loss of normal brain function in response to a head injury. But people often use it to describe any minor injury to the head or brain.

Concussions are a common type of sports injury. You can also have one if you suffer a blow to the head or hit your head after a fall.

Symptoms of a concussion may not start right away; they may start days or weeks after the injury. Symptoms may include a headache or neck pain. You may also have nausea, ringing in your ears, dizziness, or tiredness. You may feel dazed or not your normal self for several days or weeks after the injury. Consult your health care professional if any of your symptoms get worse, or if you have more serious symptoms such as

  • Seizures
  • Trouble walking or sleeping
  • Weakness, numbness, or decreased coordination
  • Repeated vomiting or nausea
  • Confusion
  • Slurred speech

Doctors use a neurologic exam and imaging tests to diagnose a concussion. Most people recover fully after a concussion, but it can take some time. Rest is very important after a concussion because it helps the brain to heal.

Centers for Disease Control and Prevention

 
  • Start Here

    • Concussion(American Academy of Family Physicians)
    • Also available in Spanish
    • Concussion(Mayo Foundation for Medical Education and Research)

 

 
 
Basics Learn More Multimedia & Cool Tools
 
Research Reference Shelf For You

 

 

 

Illustration of the skull and jaw bones

National Institutes of Health

Languages

 

 

 

Concussion - Multiple Languages