<unk>  is an impulse control disorder in which individuals repeatedly fail to resist impulses to deliberately start fires, in order to relieve some tension or for instant gratification. The term<unk>  comes from the Greek word (pyr, 'fire').<unk>  is distinct from arson, the deliberate setting of fires for personal, monetary or political gain.<unk> cs start fires to induce euphoria and often fixate on institutions of fire control like fire houses and firemen.<unk>  is a type of impulse control disorder, along with kleptomania, intermittent explosive disorder and others. There are specific symptoms that separate<unk> cs from those who start fires for criminal purposes or due to emotional motivations not specifically related to fire. Someone suffering from this disorder deliberately and purposely sets fires on more than one occasion, and before the act of lighting the fire the person usually experiences tension and an emotional buildup. When around fires, a person suffering from<unk>  gains intense interest or fascination and may also experience pleasure, gratification or relief. Another long term contributor often linked with<unk>  is the buildup of stress. When studying the lifestyle of someone with<unk> , a buildup of stress and emotion is often evident and this is seen in teens' attitudes towards friends and family. At times it is difficult to distinguish the difference between<unk>  and experimentation in childhood because both involve pleasure from the fire.
Pyromania
Koilonychia
Schooliosis
Onychoschizia
Soteria 
Eryptosis
Onychauxis
Trachonychia