The hands (palms and toes) are also a common site for psoriasis infections, and account for a relatively high proportion of the many patients we treat. The correct understanding of the symptoms of psoriasis on the hands, first of all, according to its symptoms can also be divided into common type, pustular type, etc., the patient’s fingers grow red small papules, with dry scales, and also on the erythema can appear pinhead to chestnut size to small pustules: about 1-2 weeks after the drying of their own. Patients with the pustular form, in particular, almost always have nail damage. The most common damage of psoriasis on the fingers is pitting of the nail plate, unevenness of the nail plate, along with loss of luster, and sometimes psoriatic nail symptoms may include longitudinal ridges, transverse grooves, cloudiness, hypertrophy, peeling of the free end from the nail bed or deformity of the entire nail plate, and sometimes nail fungus-like changes. Psoriasis of the palmoplantar area should be distinguished from “callus”. The latter is often caused by long-term friction and pressure, and is a hard yellow keratotic plaque, often confined to the front of the palm or the front of the plantar side, the heel, etc. It has no conscious symptoms, is not red, does not flake, and is common in manual work or long-term outdoor workers. In short, hand infection psoriasis is also a high prevalence site, patients must pay attention, try to take a variety of preventive measures, the correct not infected with this disease, even if the infection is not too intimidating, should go to the hospital treatment, do not delay their disease.