Thursday, June 24, 2010

CAUSE OF PSORIASIS

There are many beliefs as to the cause of psoriasis. Although no one knows for sure, many scientists believe that a biochemical stimulus triggers the abnormally high skin growth, which in turn causes the skin lesions. Research shows that heredity also plays a role in the development of psoriasis. Individuals who have a family member with a severe case of psoriasis tend to experience early onset of the disease.

Recent research studies indicate that psoriasis may be a disorder of the immune system. The T cell, a white blood cell, normally works to fight off infection and disease. Scientists believe that having an abnormal immune system can cause abnormal activity by T cells in the skin. These abnormally active T cells cause skin inflammation and increased cell production. Diet and vitamin influences have also been thought to play a role in the cause of the development and progression if this condition.

Because psoriasis is a lifelong condition, the levels of its severity and improvement can fluctuate over time. Psoriasis is not a contagious skin condition. An individual instead, has a genetic predisposition for psoriasis, which can be activated by certain environmental factors or emotional stress. Individuals with psoriasis may find that stress, certain medications, winter weather, and infections may cause their symtpoms to flare. Most often psoriasis affects the scalp, knees, elbows, hands, and feet.