Why do concussions cause vomiting


What is a Concussion?

A concussion is a mild and temporary injury to the brain. Concussions can cause headaches, confusion, fatigue, mood swings, and nausea.

If symptoms occur after a blow to the head, a doctor should evaluate and monitor carefully for 24 hours for signs of a more severe brain injury. People who have passed out for more than five minutes, have severe memory loss, have a discharge from the nose, or who develop a black eye without injury should urgently see a doctor. People with a concussion should rest until their symptoms subside.

A concussion usually improves within a day or two, but some people experience symptoms that can last up to six months.

What are the causes of a concussion?

A concussion is a minor injury caused by a blow to the head. Common causes are contact sports and accidents. People over 65, people who have had brain surgery, or who bleed quickly are at greater risk of having a concussion after a head injury.

What are the symptoms of a concussion?

The Main symptoms of a concussion are:

  • blurred (or doubled) vision,
  • A headache,
  • Loss of balance,
  • Confusion and
  • Memory problems.

Some people can temporarily lose consciousness. You may also feel nauseous or dizzy. A concussion sometimes causes mood and behavior changes and can make people irritable or listless.


  • who are increasingly confused
  • who get sleepy or lose consciousness
  • who vomit repeatedly,
  • who have a discharge from the nose or
  • comes to the development of a blue eye,

may have suffered a more severe head injury and need an urgent examination by a doctor.

If you are unsure whether these symptoms apply to you, start a symptom analysis.

Examination and diagnosis

Diagnosis is made based on symptoms and an examination of the nervous system. If the head injury is serious, a computed tomography (CT scan) or magnetic resonance imaging (MRI) scan may be needed to rule out a serious brain injury.

How is a concussion treated?

There is no specific treatment for a concussion. People who have a concussion should rest until their symptoms go away. Paracetamol can help against the headache. Athletes who have had a concussion should seek advice from a doctor before returning to contact sports.

What is the prognosis?

Most people recover within a few hours without treatment. Some people continue to experience symptoms such as tiredness, difficulty concentrating, and dizziness for up to six months after a concussion.

How can you prevent a concussion?

At Sports that carry a high risk of concussion salvage, some cases can be avoided by using a Helmet or head protection will be carried.