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Symptoms » Hallucination


Contents for Hallucinations
  1. Introduction: Hallucinations
  2. Causes (288 conditions)
  3. Causes of Types
  4. Drug causes (654 listings)
  5. Drug interaction causes (229 listings)
  6. Diagnostic tests (26 listings)
  7. Questions your doctor may ask (and why) (21 listings)
  8. Combined symptoms
  9. News (11 listings)


Hallucination: Hallucination is listed as an alternate name or description for symptom:

Causes of Hallucinations (Hallucination): See detailed list of causes below.

Hallucinations (medical symptom): Seeing, hearing or sensing something that does not exist.

Introduction: Hallucination

Hallucinations (medical symptom): Hallucinations can arise from a high fever or other illness involving a fever. These type of febrile hallucinations arise particularly in children and the elderly.

Hallucinations can affect any of the senses: visual hallucinations (seeing things), aural hallucinations (hearing noises or voices), taste hallucinations, or sensory hallucinations.

Chronic cases of hallucinations and delusions typify psychiatric disorders such as schizophrenia and other delusional disorders. Delusions differ from hallucinations in that delusions refer to the mind's reasoning and thoughts, rather than its sensory inputs.

It is important to be precise about this symptom, and to dinstinguish true hallucinations from other symptoms such as nightmares, vision changes, delirium, dementia, aura (e.g. the "aura" before a migraine or faint), and delusions.

Causes of Hallucinations (Hallucination)

The list of medical condition causes of Hallucinations (Hallucination) includes:

  • Some of the more common possible causes of hallucinations include:
    • High fever - A high fever, especially in children, can evoke hallucinations, consciousness changes, or dream-like states that resemble hallucinogenic states. Requires urgent medical attention.
    • Drug intoxication
    • LSD intoxication
    • Marijuana intoxication

All 288 causes of Hallucinations

More Specific Symptoms for Hallucination:

Review the causes of the following types of more specific symptoms for Hallucination:

Related Symptoms for Hallucination

Research the causes of these related symptoms that are similar to, or related to, the symptom Hallucination:

Broader Symptom Types for Hallucination:

Research the causes of these symptoms that are more broader types of symptom than Hallucination:

More Symptom Information for Hallucination

For a medical symptom description of 'Hallucination', the following symptom information may be relevant to the symptoms: Hallucinations (symptom). However, note that other causes of the symptom 'Hallucination' may be possible.

More information on symptom: Hallucinations:

Hallucination (medical condition): For a medical symptom description of 'Hallucination', the following disease information may be relevant to the symptoms: Hallucination (disease information). However, numerous other possible causes of the symptom may be possible.

Hallucination (medical condition): Incorrect perception of any of the senses.

More information on medical condition: Hallucination:


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