Mild psoriasis

Psoriasis can be mild, moderate or severe. Three percent to 10 percent of the body affected by psoriasis is considered a moderate case. More than 10 percent is considered severe. The palm of the hand equals 1 percent of the skin. However, the severity of psoriasis is also measured by how psoriasis affects a person's life. Psoriasis can have a serious impact on one’s daily activities even if it involves a small area, such as the palms of the hands or soles of the feet.