What is Hallucination?

Blog Home December 27 2019 Health
The image shows a symptom of mental health called hallucination

What is hallucination? Is it a disease? A hallucination is a perception that occurs without an external stimulus and it is understood as a real perception by the person. It appears real but is created by the person’s mind. They can affect all five of your senses. There are several reasons to hallucination. A hallucination occurs due to mental diseases like schizophrenia, Some times person who has alcohol withdrawal symptoms, may experiences hallucination. Additionally, high fever, some serious illness like kidney problems, liver failures causes the hallucination. In most time this accompanies with delusions also. Delusion, illusion are other psychotic symptoms.

This condition may occur for a short time or a long time. The duration is decided by the reason and type of the disease. If someone has hallucination the best thing is to meet a doctor. He gives treatments to control hallucination and reason causes behind them.

Causes for hallucination

There are types of reasons to hallucination.

Mental health conditions

The most common causes of hallucinations are mental illnesses. Schizophrenia, dementia, and delirium.


Some certain medications taken for mental and physical health conditions can cause hallucinations.

Substance use

Substance uses also a common cause of it. Some people experience visual or auditory hallucinations after drinking too much alcohol or taking drugs like cocaine. There are hallucinogenic drugs also like LSD (d-lysergic acid diethylamide), peyote, psilocybin and PCP (phencyclidine). They also cause hallucination.

Poor Sleep

Not getting enough sleep can also lead to hallucinations. You may be more prone to hallucinations if you haven’t slept in multiple days or don’t get enough sleep over long periods of time. Some people experience hallucination just before sleep or before waking up. It is called hypnopompic hallucinations.


Some drugs used to treat both mental or physical diseases are causes for this. Medications take for depression, Parkinson’s disease, epilepsy are some examples.

Other causes

Apart from the below reasons, there are other reasons affect hallucination. They may short-term or long-term. High fevers, especially in children and the elderly affect hallucination.
Though migraine-related hallucination is a rare condition, it has. But the cause is not known.
Isolated people may also experience hallucination. Due to the lack of stimulations in the brain hallucination occur in these people.
Epilepsy can cause auditory verbal hallucinations. Visual and auditory hallucinations common in these patients. They see flashing shapes or bright spots also.
Being elderly and having other sensory impairments, particularly deafness, predispose blind individuals also to experience visual hallucinations.
Patients with terminal illnesses, such as stage 3 HIV (AIDS), brain cancer, or kidney and liver failure, have hallucinations.

How are hallucinations diagnosed?

Identify the hallucination is a difficult thing. If hallucination occurs due to some mental disease like schizophrenia, identify is subjective.
The best thing to do is call your doctor right away if you suspect that your perceptions aren’t real. Your doctor will ask about your symptoms and perform a physical exam. Additional tests might include a blood or urine test and perhaps a brain scan. In some special cases like substance use, the doctor may examine tactile hallucinations as a diagnosis.

If you know someone who’s hallucinating, don’t leave them alone. In some severe cases, fear and paranoia triggered by hallucinations can lead to dangerous actions or behaviours.
Stay with the person at all times and go with them to the doctor for emotional support. You may also be able to help answer questions about their symptoms and how often they occur.

Types of hallucinations

Hallucinations affect a person’s vision, smell, taste, hearing, or bodily sensations. Some times one or more types of hallucination type occur on one person.

Visual hallucinations

Visual hallucinations involve seeing things that not true. The hallucinations may be of objects, visual patterns, people, animal or lights. There are two types named simple and complex visual hallucination. In simple visual hallucination, visualizes the lights, colours, geometric shapes, and indiscrete objects like things.
In complex visual hallucination, visualizes the clear, lifelike images or scenes such as people, animals, objects and places.

Auditory hallucinations

Auditory hallucinations are the most common type of hallucination. The patient might hear someone speaking or commanding to do certain things by a voice of angry, neutral, or warm. Some times patient might hear the sound of someone walking or knocking etc.

Olfactory hallucinations

Olfactory hallucinations mean false smell without true stimulation. This type of hallucination can also include enjoyable smell as well as an unpleasant odour.

Gustatory hallucinations

Gustatory hallucinations are the false sense of taste. This is common in epilepsy patients. Generally, these taste are strange or unpleasant.

Tactile hallucinations

This is the false sensation related to feeling touch or movement in the body. In this, you may feel insects run on your body here and there.

Treatments for hallucination


Hallucinations occur due to many reasons and the treatments depend on the cause of hallucinations. Because reasons differ from each other, treatments also differ. If your hallucination occurs due to excessive alcohol intake, your doctor might prescribe medication that helps calm down your nervous system. If your hallucination occurs due to dementia, It treated with another medication. Because of that, accurate diagnosis is very important for treating the condition effectively.


Counselling also takes an important place when treating hallucination patients. The counsellor may explain to you what’s happening to you and it will help you get a better understanding of the condition. He will explain to you how to face the situations when you’re feeling scared or paranoid.


Your cause of the hallucinations vary and the recovery depends on the cause. An example is; If you have schizophrenia-like mental disease hallucination can be decreased with the treatments or If you have hallucination due to taking alcohol, can treat hallucination with behaviours adjustments.

If you want to know more information regarding health topics or what is hallucination search helabeauty.info website.