The clinical manifestations of psoriasis in various areas are characterized by the fact that the damage can be seen all over the body and occurs mostly symmetrically. However, it is more common on the scalp and the extensor surfaces of the extremities. Finger (toe) nails and mucous membranes can also be involved, a few can be seen in the axillae and groin and other folds, palmoplantar less often, the characteristics of psoriasis in various parts are as follows: 1, head psoriasis: scaly erythematous plaques, clear borders, white or dirty yellow scales, lesions at the hair is bundled, the rash can be seen only in the head, but also in all parts of the body at the same time. 2, facial psoriasis: thin scales, scattered distribution of lesions, seborrheic dermatitis-like damage. However, psoriasis changes can be seen on the trunk and extremities at the same time. 3.Fold psoriasis: the lesions are mostly found in the axillae, breasts, groin and perineum, etc. The surface of the lesions is moist and eczema-like changes. 4, mucous membrane psoriasis: often occurring at the glans and foreskin, as smooth dry red spots with clear borders, scraped with white scales, psoriasis changes can be seen in other parts of the body. 5, finger (toe) nail psoriasis: most psoriasis patients have finger (toe) nail damage. It shows that the finger (toe) nail plate is lusterless, thick, the free end is separated from the nail bed, the surface of the nail plate is somewhat depressed, and sometimes the nail plate is deformed or absent, and it shows nail fungus-like changes. 6, palmoplantar psoriasis: rare, can occur at the same time with other parts, can also be seen alone in the palmoplantar. The lesions are keratinized patches with obvious boundaries, thicker in the center and thinner at the edges, and the spots can be dotted with white scales or dotted depressions. 7. Follicular psoriasis: rare, often occurring after typical psoriasis damage, and can be of two different clinical types: adult and pediatric.