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A concussion is a mild traumatic brain injury (TBI). It can occur after an impact to your head or after a whiplash-type injury that causes your head and brain to shake quickly back and forth. A concussion results in an altered mental state that may include becoming unconscious.
Anyone can become injured during a fall, car accident, or any other daily activity. If you participate in impact sports such as football or boxing, you have an increased risk of getting a concussion. Concussions are usually not life-threatening, but they can cause serious symptoms that require medical treatment.
A concussion is different from a contusion. A concussion specifically affects your brain, but contusions are bruises. Contusions can occur on your head, but they aren’t typically serious and tend to resolve within several days.
Symptoms of a concussion vary depending on both the severity of the injury and the person injured. It’s not true that a loss of consciousness always occurs with a concussion. Some people do experience a loss of consciousness, but others don’t.
It’s important to understand the symptoms you could go through yourself when you’re having a concussion, as well as the signs of someone else having a concussion.
The signs of a concussion may include:
The symptoms may begin immediately, or they may not develop for hours, days, weeks, or even months following your injury.
During the recovery period after a concussion, you may experience the following symptoms:
In some cases, a friend or loved one might be having a concussion, and they don’t know it. The following are some of the signs to look out for:
If you or someone you know experiences any of these symptoms after an injury, seek immediate emergency medical treatment or call 911.
Concussion symptoms can vary in babies. These may not be as noticeable at first, since babies don’t exhibit slurred speech, walking difficulties, and other hallmark symptoms that can be exhibited by children and adults.
Some common signs of a concussion in babies include:
Rarely, concussions can cause permanent brain damage. While most babies recover from concussions, it’s important to have them checked out by a doctor. Seek immediate medical help if your baby is unconscious.
See a doctor if you suspect that you or someone else has a concussion. If a concussion occurs during sports practice or a game, tell the athletic coach and go to a doctor.
Concussions may be accompanied by injuries to the spine. If you think a person has a neck or back injury, avoid moving them and call an ambulance for help. If you absolutely must move the person, do so very carefully. You should try to keep the person’s neck and back as stationary as possible. This will avoid causing further damage to the spine.
If a doctor or emergency room visit is necessary, your doctor will begin with questions about how the injury happened and its symptoms. Your doctor might then perform a physical examination to determine what symptoms you have.
In the case of serious symptoms, your doctor may request an MRI scan or a CT scan of your brain to check for serious injuries. In the case of seizures, your doctor may also perform an electroencephalogram, which monitors brain waves.
Some doctors use a special eye test to look for concussions. This test is sometimes used by certified athletic trainers. It’s conducted to assess if any visual changes are related to a concussion. Your doctor may look for changes in pupil size, eye movements, and light sensitivities.
Treatment for a concussion depends on the severity of your symptoms. You might need surgery or other medical procedures if you have:
However, most concussions don’t require surgery or any major medical treatment.
If the concussion is causing headaches, your doctor may recommend over-the-counter pain relievers such as ibuprofen (Advil) or acetaminophen (Tylenol). Your doctor will also probably ask you to get plenty of rest, avoid sports and other strenuous activities, and avoid driving a vehicle or riding a bike for 24 hours or even a few months, depending on the severity of your injury. Alcohol might slow recovery, so ask your doctor if you should avoid drinking it. If you should avoid alcohol, ask your doctor for how long.
Anyone who has had a concussion shouldn’t return to sports or strenuous activities without a doctor’s permission. Getting a second concussion before the first concussion is healed can cause a condition known as second impact syndrome, which can increase the chances of severe brain swelling and may be fatal.
Remember, it’s important to take time to rest after any concussion. This allows your brain to heal. Even once your doctor has granted permission to return to sports or exercise, that return should be gradual.
Other long-term complications include:
You can reduce your risk of getting a concussion by wearing the correct helmet and other athletic safety gear during sports activities. Always make sure the helmet and other gear fit properly and are worn appropriately. Ask a coach or other sports professional about safe playing techniques, and make sure to follow their advice. The CDC provides an extensive overview of concussion information.
Most people completely recover from their concussions, but it may take months for the symptoms to disappear. In rare instances, people experience emotional, mental, or physical changes that are more lasting. Repeat concussions should be avoided because even though they are rarely fatal, they can increase the chances of getting permanent brain damage.
Looking for doctors with the most experience treating concussions? Use the doctor search tool below, powered by our partner Amino. You can find the most experienced doctors, filtered by your insurance, location, and other preferences. Amino can also help book your appointment for free.
Written by: the Healthline Editorial Team
Medically reviewed on: Mar 15, 2017: Elaine K. Luo, MD
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