Symptoms of Concussion

List of symptoms of Concussion:

The list of signs and symptoms mentioned in various sources for Concussion includes the 25 symptoms listed below:

• Symptoms usually occurring immediately from brain injury:
  • Temporary loss of consciousness
  • Unconsciousness
  • Coma
  • Normal reflexes
  • Normal pupil response to light
• Later symptoms after unconsciousness (that are usually temporary):
  • Headache
  • Dizziness
  • Confusion
  • Irritability
  • Vomiting
• Other possible symptoms:
  • Numbness
  • Nausea
  • Vomiting
  • Dilated pupils
  • Pupils different sizes
  • Mental confusion
  • Memory problems
  • Unusual behavior
  • Difficulty with vision
  • Difficulty waking up
  • Grogginess
  • Convulsions

Note that Concussion symptoms usually refers to various symptoms known to a patient, but the phrase Concussion signs may refer to those signs only noticable by a doctor.

More ways to research these symptoms: To research other symptoms use the symptom center, or to research causes of more than one symptom in combination, try our multi-symptom search.

Research More About Concussion

Do I have Concussion?

• Concussion: Introduction
• Concussion: Diagnostic Testing to confirm diagnosis
• Alternative diagnoses and misdiagnosis for Concussion
• Failure to Diagnose Concussion
• Treatments for Concussion
• More about Concussion

Wrongly Diagnosed with Concussion?

The list of other diseases or medical conditions that may be on the differential diagnosis list of alternative diagnoses for Concussion includes:

• Mild Traumatic Brain Injury

See the full list of 1 alternative diagnoses for Concussion

More about symptoms of Concussion:

More information about symptoms of Concussion and related conditions:

• Other diseases with similar symptoms and common misdiagnoses
• Tests to determine if these are the symptoms of Concussion
• Symptoms that may be caused by complications of Concussion
• Underlying causes of Concussion

Other Possible Causes of these Symptoms

Click on any of the symptoms below to see a full list of other causes including diseases, medical conditions, toxins, drug interactions, or drug side effect causes of that symptom.

• Coma - see all causes of Coma
• Confusion - see all causes of Confusion
• Convulsions - see all causes of Convulsions
• Difficulty waking up - see all causes of Drowsiness
• Dilated pupils - see all causes of Dilated pupils
• Dizziness - see all causes of Dizziness
• Headache - see all causes of Headache
• Irritability - see all causes of Irritability
• Memory problems - see all causes of Memory symptoms
• Mental confusion - see all causes of Confusion
• Nausea - see all causes of Nausea
• Normal pupil response to light - see all causes of Pupil symptoms
• Normal reflexes - see all causes of Reflex symptoms
• Numbness - see all causes of Numbness
• Temporary loss of consciousness - see all causes of Syncope
• Unconsciousness - see all causes of Unconsciousness
• Unusual behavior - see all causes of Behavioral symptoms
• Vomiting - see all causes of Vomiting
• Vomiting - see all causes of Vomiting

Medical Books Online about Concussion

16 MEDICAL BOOKS ONLINE! Full text. Free access without registration. The full text of published medical book chapters related to Concussion is available from published medical books for more detailed information about Concussion.

Copyright notice for book excerpts: Copyright © 2008 Lippincott Williams & Wilkins. All rights reserved.

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Symptoms of Concussion: Online Medical Books

16 MEDICAL BOOKS ONLINE! Review the full text of medical books online, free, without registration, for more information about the symptoms of Concussion.

Concussion: Signs and symptoms
(Professional Guide to Diseases (Eighth Edition))

A concussion may produce vomiting and a short-term loss of consciousness. The patient may also suffer from anterograde and retrograde amnesia, in which the patient not only can’t recall what happened immediately after the injury, but also has difficulty recalling events that led up to the traumatic incident. The presence of anterograde amnesia and the duration of retrograde amnesia reliably correlate with the injury’s severity. The length of the unconsciousness may also relate to the concussion’s severity.

This type of injury commonly causes adults to be irritable or lethargic, to behave out of character, and to complain of dizziness, nausea, or severe headache. Some children have no apparent ill effects, but many grow lethargic and somnolent in a few hours. Postconcussion syndrome — characterized by headache, dizziness, vertigo, anxiety, and fatigue — may persist for several weeks after the injury.

READ FULL BOOK TEXT ONLINE »

Concussion: Signs and symptoms
(Handbook of Diseases)

Concussion may produce a short-term loss of consciousness, vomiting, and both anterograde and retrograde amnesia, in which the patient not only can’t recall what happened immediately after the injury but also has difficulty recalling events that led up to the traumatic incident. The presence of anterograde amnesia and the duration of retrograde amnesia reliably correlate with the severity of the injury.

Such an injury can cause an adult to be irritable or lethargic, to behave out of character, and to complain of dizziness, nausea, or severe headache. Some children have no apparent ill effects, but many grow lethargic and somnolent in a few hours.

Clinical tip  Although all of the above signs and symptoms occur normally with a concussion, they may also result from more serious head injuries. Medical evaluation is necessary to rule out serious injury to the brain.

Postconcussion syndrome — characterized by headache, dizziness, vertigo, anxiety, and fatigue — may persist for several weeks after the injury.

READ FULL BOOK TEXT ONLINE »

Medical articles and books on symptoms:

These general reference articles may be of interest in relation to medical signs and symptoms of disease in general:

• Diagnostic Testing for a Diagnosis of Concussion
• Research Alternative Diagnoses for Concussion
• More about Concussion
• Online Diagnosis
• Self Diagnosis Pitfalls
• Pitfalls of Online Diagnosis
• Symptoms of the Silent Killer Diseases
• Lesser known silent killer diseases
• Books on signs and symptoms

Full list of premium articles on symptoms and diagnosis

About signs and symptoms of Concussion:

The symptom information on this page attempts to provide a list of some possible signs and symptoms of Concussion. This signs and symptoms information for Concussion has been gathered from various sources, may not be fully accurate, and may not be the full list of Concussion signs or Concussion symptoms. Furthermore, signs and symptoms of Concussion may vary on an individual basis for each patient. Only your doctor can provide adequate diagnosis of any signs or symptoms and whether they are indeed Concussion symptoms.