Psoriasis Reference Guide

What Causes Psoriasis?

There are generally two causes of Psoriasis; immune system deficiencies and genetics. Of course, the two root causes are tied together.

In a normal immune system, the body’s white blood cells produce antibodies to attack bacteria and viruses. Likewise the body’s white blood cells also produce healing agents once the body has been rid of unwanted invaders. In psoriasis, white blood cells cause a patient’s body to erroneously fight normal tissues in the skin and, sometimes, the joints. In addition, these same dysfunctional white blood cells will also produce an abnormal amount of "good" chemicals meant to heal the body that will cause even more inflammation in the skin and joints.

With respect to genetics, researchers have discovered key genes that are involved with psoriasis. However, only 10 percent of these harboring such genes develop psoriasis, which is ultimately triggered by some other factor.

Weather

Cold, dry weather will usually result in a psoriasis flare-up.

Stress

Stress, anger, depression and anxiety are strongly associated with psoriasis flare-ups.

Infection

Infections caused by a virus or bacteria can cause a psoriasis flare up.

Skin Injury

Mild skin abrasions can trigger a psoriasis flare up.