Hallucinating

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Medically Reviewed By:

Charles Carlson

Charles Carlson, DO, MS

Psychiatry

Yu Shirai

Yu Shirai, MD

Psychiatry

From our team of 50+ doctors

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People with these symptoms also use Ubie's symptom checker to find possible causes

  • False sensory perception

  • I keep seeing small insects (which are not real)

  • See things don't exist

  • Have hallucinations

  • Seeing things and feeling restless after cutting down on alcohol less than 2 days ago

  • Hallucinating things and insects after stopping alcohol for 2 days or less

  • Imaginary insects

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Content updated on Sep 6, 2022

About the symptom

Most commonly, a hallucination can be seeing or hearing something that does not exist, but it could also include one of the other senses such as smell or of touch. It can be caused by many different physical or psychiatric conditions.

When to see a doctor

Seek professional care if you experience any of the following symptoms

  • Hallucinations

Possible causes

  • Schizophrenia

    A psychological disorder where there is altered brain function. The exact cause is unknown, but a combination of genetic, psychological and environmental factors are likely responsible.

  • Dissociative disorder

    Dissociative disorder is mental disorder that involve experiencing a disconnection and lack of continuity between thoughts, memories, surroundings, actions and identity. People with dissociative disorder escape reality in ways that are involuntary and unhealthy and cause problems with functioning in everyday life.

  • Alzheimer dementia (AD)

    Alzheimer's disease is the most common cause of dementia. The brain shrinks affecting memory and behavior. Symptoms worsen over time, and can interfere with daily life. Increasing age increases the risk for Alzheimer dementia.

  • Hypothyroidism
  • Alcohol dependence / delirium tremens
  • Pellagra

Related serious diseases

  • Dehydration

    Dehydration occurs when you lose more fluid than you take in, and your body does not have as much water as it needs. Common causes of dehydration include inadequate intake, diarrhea, vomiting and fever. Dehydration can also lead to serious complications including seizures, urinary and kidney problems.

  • Epilepsy
  • Posterior reversible encephalopathy syndrome (PRES)

  • Wernicke encephalopathy

Questions your doctor may ask about this symptom

Your doctor may ask these questions to check for this symptom

  • Have you ever seen, heard, or smelt something that did not actually exist?

  • Have you currently regained consciousness after temporarily losing consciousness?

  • Do you have headaches or does your head feel heavy?

  • Do you have a fever?

  • Do you feel any weakness in your arms or legs?

Other Related Symptoms

Similar symptoms or complaints

References

Medically Reviewed By:

Yu Shirai

Yu Shirai, MD

Psychiatry

From our team of 50+ doctors

Just 3 minutes.
Developed by doctors.

Ubie is supervised by 50+ medical experts worldwide

Shohei Harase

Shohei Harase, MD

Neurology

Kameda Medical Center, Japan

Sanshiro Kato

Sanshiro Kato, MD

Emergency department

Kawai Clinic, Japan

Yu Shirai

Yu Shirai, MD

Psychiatry

Yotsuya Yui Clinic, Japan

Yoshinori Abe

Yoshinori Abe, MD

Internal medicine

Co-founder of Ubie, Inc.

Rohini R

Rohini R, MD

Ear, nose, throat (ENT)

Bayshore Health Centre, India

Seiji Kanazawa

Seiji Kanazawa, MD, PHD

Obstetrics and gynecology (OBGYN)

National Center for Child Health and Development, Japan

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