We all know that each disease has its own distinct symptoms, and so does psoriasis. Generally, according to the symptom characteristics of psoriasis, it is mainly divided into four types: common psoriasis, pustular psoriasis, erythrodermic psoriasis and arthritic psoriasis, and the symptoms of different types are different, and the treatment methods are also different. What is the performance of psoriasis? In the beginning, the symptoms of psoriasis are always some white scales, which is one of the manifestations of psoriasis, the silvery-white scales that cover the skin lesions. But different parts of the scale performance will also be different, such as the scalp area scales for large lesions covered with very thick scales, remove the scales after the point bleeding; armpits, under the breast, groin, vulva and buttocks skin folds, due to moisture friction, smooth and no scales, often infiltrative erythema, erythema and normal skin border clear; and facial lesions scales, generally less; palmoplantar parts scales layers of adhesion and The scales are not loose and are often chapped. Psoriasis is a skin disease that is characterized by red papules or plaques with silvery white scales on the skin surface. The initial symptoms of psoriasis are covered with very thick gray-white or gray-yellow scales on the lesions, which are generally more common with severe psoriasis on the head, and the scales are easily shed and mostly itchy. The onset of psoriasis is very much related to the internal organs, so psoriasis is not just a skin disease, the lesions are prone to involve the joints, mucous membranes, and internal organs. There are a number of systemic diseases that are directly or indirectly related to psoriasis, and they are increasing, and they are also a systemic disease.