Main > Medical terms> Alopecia


Alopecia (Latin alopecia, Greek alopekia; synonyms: baldness, атрихоз, an atrichia, a pelada, baldness) – temporary or permanent, partial or full loss (absence) of hair.

Types of an alopecia:

  • Inborn (congenita) – resistant, develops since the birth;
  • Inborn general (congenita totalis) – lack of hair on all integument;
  • Inborn limited (congenita circumscripta; synonym: an atrichia spotty) – lack of hair on limited sites of an integument;
  • Gnezdny (areata; synonyms: circular, focal) – a hair loss on one or several sharply limited roundish sites of skin;
  • Gnezdny regional (areata marginalis; synonyms: Wilson a gnezdny alopecia, офиаз) – gnezdny with localization on peripheral sites of a pilar part of the head, a thicket – in a nape;
  • Gnezdny cutting (areata tonsurans) – the atypical form of a gnezdny alopecia which is characterized by an oblamyvaniye of hair;
  • Diffusion (diffusa) – a uniform poredeniye of hair;
  • leprose (leprosa) – the symptomatic resistant alopecia which arose because of trophic frustration at patients with a leprosy;
  • Linear rubtsuyushchy (cicatricalis linearis; synonym: Leventalya-Lyuri a linear rubtsuyushchy alopecia) – the family disease of an unknown etiology which is characterized by the centers of a persistent hair loss located linearly with formation of a hem;
  • Melkoochagovy (parvimaculata) – the gnezdny alopecia which is characterized by the small sizes of the centers of baldness; it is observed in the form of epidemic flashes at children;
  • Neurotic (neurotica; synonym: Michelson a neurotic alopecia) – the symptomatic alopecia arising at some diseases of a nervous system;
  • Newborns occipital (occipitalis neonatorum) – traumatic passing, develops in occipital area at newborns at continuous lying on spin;
  • The general (universalis; synonyms: generalized, universal) – total absence of hair on all integument;
  • Premature (praematura; synonym: presenile) – not clear etiology, develops at persons of middle and young age, begins with parietal or frontal area;
  • X-ray (roentgenica) – arises because of x-ray radiation; can be a rack (at a considerable exposure dose);
  • Cicatricial (cicatricalis) – resistant, is caused by the cicatricial changes of skin which arose because of injuries or inflammatory processes;
  • Seborrheal (seborrhoica) – diffusion, arises at seborrhea;
  • Symptomatic (symptomatica) – develops as a complication or a symptom at any diseases, injuries of skin or intoxications;
  • Syphilitic (syphilitica) – temporary, arises in the secondary period of syphilis because of the general intoxication or defeat of hair follicles;
  • Syphilitic diffusion (syphilitica diffusa) – a form of an alopecia syphilitic with a diffusion hair loss it is preferential in temporal areas;
  • Syphilitic melkoochagovy (syphilitica areolaris; synonym: an alopecia syphilitic ochazhkovy) – a form of an alopecia syphilitic with a set of the small roundish ochazhok located, mainly, in a nape, temples, eyelashes and eyebrows;
  • Syphilitic mixed (syphilitica mixta) – a form of an alopecia of a melkoochagovy and diffusion alopecia, syphilitic with signs, syphilitic;
  • Senile (senilis; synonym: senile) – resistant, develops because of a senile atrophy of hair follicles;
  • Thallic (tallica) – passing, develops because of use of a thallic plaster at treatment of dermatomycoses;
  • Toxic (toxica) – symptomatic, develops because of intoxication;
  • Total (totalis; synonym: gnezdny malignant) – a generalized form of a gnezdny alopecia, leads to a full hair loss on all head, and sometimes and on other skin sites;
  • Traumatic (traumatica; synonym: the Greenland) – arises because of continuous traumatizing certain sites of indumentum;
  • Triangular (triangularis frontoparietalis) – a form of an inborn alopecia, has an appearance of the unilateral center of triangular shape in frontotemporal area;
  • Epilinovy (epilinica) – passing, develops at use of an epilinovy plaster at treatment of dermatomycoses.
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