Psoriasis is a chronic skin condition affecting approximately 4.5 million people in the United States.
New skin cells grow too rapidly, resulting in inflamed, swollen, scaly patches of skin in areas where the old skin has not shed quickly enough.
Psoriasis can be limited to a few spots or can involve more extensive areas of the body, appearing most commonly on the scalp, knees, elbows and trunk.
Psoriasis is not a contagious disease. The cause of psoriasis is unknown, and there currently is no cure.
Psoriasis can strike people at any age, but the average age of onset is approximately 28 years. Likewise, it affects both men and women, with a slightly higher prevalence in women than in men.
Approximately 30 percent of people with psoriasis are estimated to have moderate-to-severe forms of the disease.
Psoriasis can be a physically and emotionally painful condition. It often results in physical limitations, disfiguration and a significant burden in managing the daily care of the disease.
Psoriasis sufferers may feel embarrassed, angry, frustrated, fearful, depressed and, in some cases, even suicidal.
