Plaque Psoriasis is the most common type of psoriasis. The skin usually red and it is covered with dry silvery cales and is inflamed. The plaques are itchy and feels like burning which is typical for this type of psoriasis. Patches are usually shaped from circular to oval but sometimes the shape is irregular. The patches are often found on arms, legs, trung, and scalp but may be found on any part of the skin. The most common place where the psoriasis are present is on the knees and elbows.
Psoriasis is not contagious but can be inherited. Environmental factors such as HIV infection, sun exposure, alcholism, and smoking may affect how often the psoriasis occurs and how long the flare-ups will last.
It affects both children and adult. Men and women are equally affected but the females develop plaque psoriasis earlier than males. The first peak occurrence of plaque psoriasis is in people aged 16-22 years and the second peak is in people aged 57-60.
This diseases don’t have any exceptions and affects all races.
Causes
Research indicates that the disease is also a result from a disorder in the immune system. The system makes white blood cells that protects body from infection, however in psoriasis, a type of white blood cell called T cell abnormally trigger inflammation in the skin. These causes the skin cells to grow faster than the normal rate and pile up in raised patches on the outer surface of the skin.
Those with a family history of psoriases have a greater chance of having the disease. Some people carry genes that makes them develop psoriasis on later years. When both parents have the disease, the child may have a 50 percent chance of developing psoriases.
Other causes are triggered by certain factors such as injury to the skin, stress, alchohol, sunlight, HIV infection, smoking, and certain drugs.
