Psoriasis is a chronic skin disease, characterized by the occurrence of red plates, clearly defined, containing scuame and are located on different portions of the body. Squams are thick, pale white blue color, adhering to the skin and easily detachable, in the form of blades.

The disease is found at approximately 2-3% of the population. Psoriasis mainly affects certain areas of the body, including: scalp, elbows, knees and back. Rarely, axils, palms and soles are met. In 50% of cases, psoriasis can locate at the nail, which is disagreeable and bark, becoming greenish. Symptoms vary from mild forms and come to truly harrowing events (eg, those located in creasy articulations).

On the other hand, serious forms of psoriasis give birth by the events of emotional disease having a negative impact on social relationships, personal and emotional. Patients are often so sick they feel the familiar,” we feel isolated and depressed”.

The psoriasis is unknown, but among the factors are triggered trauma, infections and some medications. Diagnosis is based on the appearance and distribution of lesions. Treatment consists in the use of emollient creams, vitamin D, retinoizi, corticosteroids, phototherapy, and in severe cases, methotrexate or immunosuppressive drugs.

Distribution incidence according to age is bi modular: meets first peak at 16 – 22 years and the second between 57 and 60 years.