<prompt> A 25 years old male co recurrent abdominal pain but biochemical assays and ultrasound abdomen is normal. He also complains of constant headache. He suddenly complains of loss of vision of bilateral eyes. Ophthalmologist finds nothing on examination. Symptoms are most probably due to -Bilateral optic neuritisPosterior inferior cerebellar artery infarctMalingeringFactitious disorder  <response>: Ans. isd i.e.,Factitious disorder Factitious disorder munchausen syndrome It is also known as Hospital addiction, hospital hoboes, or Professional patient. The term Munchausen syndrome is used for those patients who repeatedly simulate or fake diseases intentionally for the sole purpose of obtaining medical attention. There is no other recognizable motive in contrast to malingering. The typical presentation of Munchausen syndrome is characterized by a restless journing from doctor to doctor and hospital to hospital, an ever-changing list of complaints and symptoms. Patient tries to maintain sick role to obtain medical attention. There may be evidence of earlier treatment usually surgical procedure, for example multiple surgical scars grid iron abdomen. Person can mimic any physical or psychiatric illness. The patients distort their clinical histories, laboratory tests reports and even facts about other aspects of their life i.e., pseudologia fantastica In contrast, In conversion disorder, somatization disorders and hypochondriasis, there is no distortion of clinical history or labortory tests. Sometimes, they distort physical signs by self-inflicted injuries and secondary infections. Patient has eagerness to undergo various tests, investigations and procedures 