psoriasis银屑病.ppt

文档介绍：PSORIASIS
What is Psoriasis?
Psoriasis is a chronic, inflammatory dermatosis characterized by well-demarcated erythematous plaques topped by silvery scales.
How does psoriasis occur?
inheritance
environment
immunity
inheritance
16%
50%
environment
infection
endocrine  
tension
stress
other: drug、 smoke、drink
infection
Typically,a al sore throat may precipitate guttate paoriasis
endocrine
pregnancy
delivery
tension
tension
wound
incitement
blood vessel 、 motor nerve
psoriasis
aggravate
induced
stress
trauma
surgery
other
Drug Beta-blockers, lithium and antimalarials can make psoriasis worse or precipitate it.
Cigarettes and alcohol seem to make psoriasis worse.