<unk>  or<unk>  a condition in which a person is excessively and unduly worried about having a serious illness. An old concept, the meaning of hypochondria has repeatedly changed. It has been claimed that this debilitating condition results from an inaccurate perception of the condition of body or mind despite the absence of an actual medical diagnosis. An individual with<unk>  is known as a hypochondriac. Hypochondriacs become unduly alarmed about any physical or psychological symptoms they detect, no matter how minor the symptom may be, and are convinced that they have, or are about to be diagnosed with, a serious illness. Often, hypochondria persists even after a physician has evaluated a person and reassured them that their concerns about symptoms do not have an underlying medical basis or, if there is a medical illness, their concerns are far in excess of what is appropriate for the level of disease. It is also referred to<unk> m which is the act of being in a hypochondriatic state, acute<unk> m. Many hypochondriacs focus on a particular symptom as the catalyst of their worrying, such as gastro-intestinal problems, palpitations, or muscle fatigue. To qualify for the diagnosis of hypochondria the symptoms must have been experienced for at least 6 months. International Classification of Diseases (ICD-10) classifies<unk>  as a mental and behavioral disorder. In the Diagnostic and Statistical Manual of Mental Disorders, DSM-IV-TR defined the disorder,<unk> ", as a somatoform disorder and one study has shown it to affect about 3% of the visitors to primary care settings. The 2013 DSM-5 replaced the diagnosis of<unk>  with the diagnoses of somatic symptom disorder (75%) and illness anxiety disorder (25%).<unk>  often characterized by fears that minor bodily or mental symptoms may indicate a serious illness, constant self-examination and self-diagnosis, and a preoccupation with one's body. Many individuals with<unk>  express doubt and disbelief in the doctors' diagnosis, and report that doctors’ reassurance about an absence of a serious medical condition is unconvincing, or short-lasting. Additionally, many hypochondriacs experience elevated blood pressure, stress, and anxiety in the presence of doctors or while occupying a medical facility, a condition known as "white coat syndrome". Many hypochondriacs require constant reassurance, either from doctors, family, or friends, and the disorder can become a debilitating challenge for the individual with<unk> , as well as their family and friends. Some hypochondriacal individuals completely avoid any reminder of illness, whereas others frequently visit medical facilities, sometimes obsessively. Some sufferers may never speak about it.
Hypochondriasis
Panic disorder
Autoeczematization
Generalized anxiety disorder
Psychopathy
Obsessive–compulsive disorder
Identity disorder
Agoraphobia