Home > Concussion
concussion is a type of traumatic brain injury that is caused by a blow to the head or body, a fall, or another injury that jars or shakes the brain inside the skull. Although there may be cuts or bruises on the head or face, there may be no other visible signs of a brain injury.
You don't have to pass out (lose consciousness) to have a concussion. Some people will have obvious
symptoms of a concussion, such as passing out or forgetting what happened right before the injury. But other people won't. With rest, most people fully recover from a concussion. Some people recover within a few hours. Other people take a few weeks to recover.
It's important to know that after a concussion the brain is more sensitive to damage. So while you are recovering, be sure to avoid activities that might injure you again.
In rare cases, concussions cause
more serious problems. Repeated concussions or a severe concussion may lead to long-lasting problems with movement, learning, or speaking.
Because of the small chance of serious problems, it is important to
contact a doctor if you or someone you know has symptoms of a concussion.
Your brain is a soft organ that is surrounded by spinal fluid and
protected by your hard skull. Normally, the fluid around your brain acts like a
cushion that keeps your brain from banging into your skull. But if your head or
your body is hit hard, your brain can crash into your
skull and be injured.
There are many ways
to get a concussion. Some common ways include fights, falls, playground
injuries, car crashes, and bike accidents. Concussions can also happen while
participating in any sport or activity such as football, boxing, hockey,
soccer, skiing, or snowboarding.
It is not always easy to know if someone has a
concussion. You don't have to pass out (lose consciousness) to have a concussion.
of a concussion range from mild to severe and can last for hours, days, weeks,
or even months. If you notice any symptoms of a concussion, contact your
Symptoms of a concussion fit into four main categories:
Young children can have the same symptoms of a concussion as older children and adults. But sometimes it can be hard to tell if a small child has a
concussion. Young children may also have symptoms like:
Concussions in older adults can also be dangerous. This is because concussions in older adults are often missed. If you are caring for an older adult who has had a fall, check him or her for symptoms of a concussion. Signs of a serious problem include a headache that gets worse or increasing confusion or both. See a doctor right away if you notice these signs. If you are caring for an older adult who takes a blood thinner and who has had a fall, take him or her to a doctor right away, even if you don't see any symptoms of a concussion.
Sometimes after a concussion you may feel as if you are not functioning as well as you did before the injury. This is called
postconcussive syndrome. New symptoms may develop, or you may continue to be bothered by symptoms from the injury, such as:
If you have symptoms of
postconcussive syndrome, call your doctor.
Any person who may have had a concussion needs to see a doctor. If a doctor thinks that you have a concussion,
he or she will ask questions about the injury. Your doctor may ask you questions that test your ability to pay attention and your learning and memory. Your doctor may also try to find out how quickly you can solve problems. He or she may also show you objects and then hide them and ask you to recall what they are. Then the doctor will check your strength, balance, coordination,
reflexes, and sensation.
Neuropsychological tests have become more widely used after a concussion. These tests are only one of many ways that your doctor can find out how well you are thinking and remembering after a concussion. These tests can also show if you have any changes in emotions or mood after a concussion.
Sometimes a doctor will order imaging tests such as a
CT scan or an
MRI to make sure your brain is not bruised or
After being seen by a doctor, some people have to stay in the
hospital to be watched. Others can go home safely. If you go home, follow your doctor's instructions. He or she will tell you if you need someone to watch you closely for the next 24 hours or longer.
Call 911 or seek emergency care right away if you are watching a person after a concussion and the person has:
Warning signs in children are the same as those listed above for adults. Take your child to the emergency department if he or she has any of the warnings signs listed above or:
Some people feel normal again in a few
hours. Others have symptoms for weeks or months. It is very important to
allow yourself time to get better and to slowly return to your regular
activities. If your symptoms come back when you are doing an activity, stop and rest for a day. This is a sign that you are pushing yourself too hard. It is also important to call your doctor if you are not improving
as expected or if you think that you are getting worse instead of
Rest is the best way to recover from a concussion. You need to rest your body and your brain. Here are some tips to help you get better:
A person who might
have a concussion needs to immediately stop any kind of activity or sport.
Being active again too soon increases
the person's risk of having a more serious brain injury. Be sure to see a doctor before returning to play.
Reduce your chances of getting a
Wear a helmet for any activity that can cause a fall or impact to the head or neck. Examples include bike riding, football, baseball, ATV riding, skateboarding, skiing, snowboarding, inline skating, and horseback riding. Helmets help protect your skull from injury. But brain damage can occur even when a helmet is worn.
Reduce your child's chances of getting a concussion:
Other Works Consulted
American College of Emergency Physicians (ACEP) and Centers for Disease Control and Prevention (CDC) (2008). Clinical policy: Neuroimaging and decisionmaking in adult mild traumatic brain injury in the acute setting. Annals of Emergency Medicine, 52(6): 714-748.
American College of Sports Medicine (2006). Concussion (mild traumatic brain injury) and the team physician: A consensus statement. Medicine and Science in Sports and Exercise, 39(2): 395-399.
Department of Veterans Affairs, Department of Defense (2016). VA/DoD Clinical Practice Guideline for the Management of Concussion-mild Traumatic Brain Injury. U.S. Department of Veterans Affairs. http://www.healthquality.va.gov/guidelines/Rehab/mtbi/mTBICPGFullCPG50821816.pdf. Accessed September 13, 2016.
Giza CC, et al. (2013). Summary of evidence-based guideline update: Evaluation and management of concussion in sports: Report of the Guideline Development Subcommittee of the American Academy of Neurology. Neurology, 80(24): 2250-2257. Also available online: http://www.neurology.org/content/80/24/2250.full.
Halstead ME, et al. (2010). Sport-related concussion in children and adolescents. Pediatrics, 126(3): 597-615.
Halstead ME, et al. (2013). Returning to learning following a concussion. Pediatrics,132(5): 948-957.
McCrory P, et al. (2013). Consensus statement on concussion in sport: The 4th International Conference on Concussion in Sport held in Zurich, November 2012. British Journal of Sports Medicine, 47(5): 250-258. Also available online: http://bjsm.bmj.com/content/47/5/250.full.
Meehan WP, Bachur RG (2009). Sport-related concussion. Pediatrics, 123(1): 114-123.
Smith BW (2010). Head injuries. In SJ Anderson, SS Harris, eds., Care of the Young Athlete, 2nd. ed., pp. 185-191. Elk Grove Village, IL: American Academy of Pediatrics.
ByHealthwise StaffPrimary Medical ReviewerAnne C. Poinier, MD - Internal MedicineE. Gregory Thompson, MD - Internal MedicineAdam Husney, MD - Family MedicineKathleen Romito, MD - Family MedicineMartin J. Gabica, MD - Family MedicineSpecialist Medical ReviewerWilliam H. Blahd, Jr., MD, FACEP - Emergency Medicine
Current as ofOctober 14, 2016
Current as of:
October 14, 2016
Anne C. Poinier, MD - Internal Medicine & E. Gregory Thompson, MD - Internal Medicine & Adam Husney, MD - Family Medicine & Kathleen Romito, MD - Family Medicine & Martin J. Gabica, MD - Family Medicine & William H. Blahd, Jr., MD, FACEP - Emergency Medicine
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