Psoriasis is caused by abnormal growth of skin cells and abnormal function of white blood cells (T lymphocytes) when the rate of division than the dismantling of dead skin cells.
In a healthy person, the process of replacing skin cells occurs gradually and takes 28-30 days.
while the skin cells of psoriasis patients will be distributed more quickly because the body's immune system disorder that sends a signal to speed up the processing cycle of the skin within 3-7 days.
Dead skin cells will turn this over to form a thick white scales on the reddish spots arise. Then he will be itching and the disease affects the nails, fingers and toes and caused recessed.
Usually, psoriasis skin will become spotted or spotted red, swollen and the skin will thicken and harden. Sometimes a patch of dead cells was changed to black due to the presence of melanin.
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Source
- Psoriasis is believed to be caused by a combination of genetic factors and environment.
- One-fourth to one-third of those who suffer from psoriasis have a family history of such. Genetic factors also play a role in some cases.
- Physical and emotional pressure, throat infections, flu, some kind of medication (eg steroid hormones, some anthihipertensif may make psoriasis worse.
- Drinking alcohol and smoking may make psoriasis worse or difficult to lose.
