Taijin kyofusho (Japanese: 対人恐怖症, TKS, for taijin kyofusho symptoms) is a Japanese culture-specific syndrome. The term taijin kyofusho translates into the disorder (sho) of fear (kyofu) of interpersonal relations (taijin). Those who have taijin kyofusho are likely to be extremely embarrassed about themselves or fearful of displeasing others when it comes to the functions of their bodies or their appearances. These bodily functions and appearances include their faces, odor, actions, or even looks. They do not want to embarrass other people with their presence. This culture-bound syndrome is a social phobia based on fear and anxiety.The symptoms of this disorder include avoiding social outings and activities, rapid heartbeat, shortness of breath, panic attacks, trembling, and feelings of dread and panic when around people. The causes of this disorder are mainly from emotional trauma or psychological defense mechanism. It is more common in men than women. Lifetime prevalence is estimated at 3–13%. Subcategories
Taijin kyofusho is commonly described as a form of social anxiety (social phobia), with the person dreading and avoiding social contact, and as a subtype of shinkeishitsu (anxiety disorder). However, instead of a fear of embarrassing themselves or being harshly judged by others because of their social ineptness, sufferers of taijin kyofusho report a fear of offending or harming other people. The focus is thus on avoiding harm to others rather than to oneself.
In the fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) it is instead considered a sub-category of the "Other Specified Obsessive-Compulsive and Related Disorder" category [300.3 (F42)], where variants of taijin kyofusho are "Shubo-kyofu [...] that is similar to body dysmorphic disorder and is characterized by excessive fear of having a bodily deformity" and "Jikoshu-kyofu [...] characterized by fear of having an offensive body odor".One source even breaks taijin kyofusho into two different subtypes: neurotic and offensive. The first subtype can be broken into two parts that are classical type and avoidant type. The classical type being afraid of being judged negatively because of physical signs of anxiety and feeling shame due to anxiety. The physical signs that can cause fear of being judged include sweating and tremors. The second subtype deals with people thinking something about them is offensive. Some of their fears include body odor, gas, excessive or insufficient eye contact, blushing, etc. In the official Japanese diagnostic system, taijin kyofusho is subdivided into the following categories:
Sekimen-kyofu (Japanese: 赤面恐怖), the phobia of blushing (ereuthophobia)
Shubo-kyofu (Japanese: 醜貌恐怖), the phobia of a deformed body, similar to body dysmorphic disorder
Jikoshisen-kyofu (Japanese: 自己視線恐怖), the phobia of eye contact
Jikoshu-kyofu (Japanese: 自己臭恐怖), the phobia of having foul body odor (also termed olfactory reference syndrome, osmophobia or bromidrosiphobia)Japan psychology also recognizes additional types of taijin kyofusho based on severity:

Transient: This type of taijin kyofusho is short-lived and moderately severe. It most commonly appears in teens, but may occur at any time.