Psoriasis is a debilitating skin condition that can affect the elbows, knees, scalp, lower back, face and indeed, any part of the body, including the genital area. It may also affect the fingernails and toenails making them thick and discolored.

Psoriasis is a chronic skin disease of scaling and inflammation that affects 2 to 2.6 percent of the U.S population, or between 5.8 and 7.5 million people.

Although the disease occurs in all age groups, it primarily affects adults. It appears about equally in males and females . . . Read Article