Psoriasis is quite common, affecting around two per cent of the population, although people with very mild symptoms may not be aware they have it. Psoriasis can begin at any age but usually starts either around the age of 20 or between 50 and 60.

The disorder is a chronic recurring condition which varies in severity from minor localized patches to complete body coverage. Fingernails and toenails are frequently affected (psoriatic nail dystrophy) and can be seen as an isolated finding. Psoriasis can also cause inflammation of the joints, which is known as psoriatic arthritis. In contrast to eczema, psoriasis is more likely to be found on the extensor aspect of the joint.

 Causes for Psoriasis

Following factors can trigger psoriasis.

  • Heredity – If one parent is affected then there is 15% of chances for the child to suffer from psoriasis. If both the parents are affected then the possibility of child getting the psoriasis is 60%.
  • Throat infections trigger psoriasis.
  • Trauma or hurt on skin like cuts, bruises or burns may cause psoriasis.
  • Some medicines or skin irritants initiate psoriasis.
  • Smoking and alcohol are other two factors which activate psoriasis.
  • Mental stress or psychological trauma may also set off psoriasis.
  • Due to abnormality in the mechanism in which the skin grows and replaces itself causes psoriasis.
  • Abnormality with the metabolism of amino acids.
  • Use of certain medicines.
  • Due to infections.
  • Heredity factors are also responsible.
  • Physical and emotional stress.
  • Diet- common in non-vegetarians.
  • Weather- exacerbations in winters & remissions in summers.
  • Hormonal- worse at or after menopause & remission during pregnancy.

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