Today we will talk about 5 rare and strange diseases in the world.


5.Alien Hand Syndrome

You think that is the actual meaning of the alien hand syndrome. Alien hand syndrome is a phenomenon in which one hand is not under control of the mind. The person loses control of the hand, and it acts as if it has a mind of its own. The person does not know that what is going on. It looks like that this hand has its own mind. Let’s suppose how it is horrible and strange that the person who has this phenomenon he opens the light with his hand. But another hand turn off the light immediate. Then what will he do?. His hand on him. And he fights with his hand to save himself.


A 77-year-old woman with chronic atrial fibrillation had her anticoagulation stopped temporarily for spine surgery. No bridging with low-molecular-weight heparin was done. Two days later, while watching television, she noted her left hand flinging across her visual field. Her left hand stroked her face and hair without her will. She got terrified. Her attempts to control the left hand with the right hand were unsuccessful.

No one can invent any treatment. But the doctor says that best thing to rid this disease is, busy this alien hand all the time. And don’t give any attention to it.


4.Frigoli Delusion

Let’s suppose that you are going to picnic and one person comes in front of you in a different form again an again. This person is just one but she/he comes in a different form just to irritate you. Then what you will feel? The same case happens with frigoli delusion person. Because this person always thinks that he all the people are same. But just in a different form. A person with the Fregoli delusion can also inaccurately recall places, objects, and events. This disorder can be explained by “associative nodes. frigoli affect the patient’s recollection.


Mrs T, a 69-year old married housewife recently discharged from a local hospital after her first psychiatric admission, went to another doctor for a second opinion.  At the time of her admission earlier in the year, she had received the diagnosis of atypical psychosis because of her belief that her husband had been replaced by another unrelated man.  She refused to sleep with the impostor, locked her bedroom and door at night, asked her son for a gun, and finally fought with the police when attempts were made to hospitalize her.  At times she believed her husband was her long deceased father.  She easily recognized other family members and would only misidentify her husband.


3.Capgras Syndrome

It will too terrify when you enter your home and you released this house is not yours where you live. In this house everything is looking like that is in your house. Your mother father, wife, kids even dog are duplicate. If anyone feels like this then it is a symptom of the capgras syndrome. The first clues to the possible causes of the Capgras delusion were suggested by the study of brain-injured patients who had developed prosopagnosia. In this condition, patients are unable to recognize faces consciously, despite being able to recognize other types of visual objects.


Diane was a 28-year-old single woman who was seen for an evaluation at a day hospital program in preparation for discharge from a psychiatric hospital. This was her third psychiatric admission in the past five years. Always shy and reclusive, Diane first became psychotic at age 23. Following an examination by her physician, she began to worry that the doctor had damaged her internally and that she might never be able to become pregnant. The patient’s condition improved with neuroleptic treatment but deteriorated after discharge because she refused medication. When she was admitted eight months later, she presented with delusions that a man was making exact copies of people—”screens”— and that there were two screens of her, one evil and one good. The diagnosis was schizophrenia with Capgras delusion. She was dishevelled and had a bald spot on her scalp from self-mutilation.



It is also called body integrity identity disorder. In this disease patients refuse to know their any body part. They say that it is not a part of their body. They think that this part should not a part of their body. Due to this, they try to cut this body part to get rid of it. Research provisionally found that people with BID were more likely to want removal of a left limb than right, in accordance with damage to the right parietal lobe; in addition, skin conductance response is significantly different above and below the line of the desired amputation, and the line of the desired amputation remains stable over time, with the desire often beginning in early childhood.


In the last few years, a number of stories have appeared about people who have voluntarily chosen to become disabled. For instance, there’s the man who chose to have his left leg amputated below the knee, the woman who blinded herself by pouring drain cleaner in her eyes, and the woman who intentionally impaired her hearing out of a desire to become deaf.



In cryptomnesia, the patients do not remind their previous story that had happened in a past. But if this incident reminds any time that they feel that this incident happens with them in just a few minutes before. And they react about this incident. In studies it has been found that the timing of the idea is also important: If another person produces an idea immediately before the self-produces an idea, the other’s idea is more likely to be claimed as one’s own, ostensibly because the person is too busy preparing for their own turn to properly monitor source information.


That’s all before the effect on the author. Helen Keller’s The Frost King involved incidents of self-acknowledged cryptomnesia, which severely affected her confidence in future writing.

That’s all before the effect on the author. Helen Keller’s The Frost King involved incidents of self-acknowledged cryptomnesia, which severely affected her confidence in future writing. I have ever since been tortured by the fear that what I write is not my own. For a long time, when I wrote a letter, even to my mother, I was seized with a sudden feeling, and I would spell the sentences over and over, to make sure that I had not read them in a book… It is certain that I cannot always distinguish my own thoughts from those I read, because what I read becomes the very substance and texture of my mind.

Reader tells us in comments that which diseases are strangest. Thankyou