The first thing you need to do is to get a good idea of what you are looking for. The symptoms of psoriasis picture 1, common type psoriasis The initial stage of the disease is a small papule of rice grain to soybean size, the color is mostly red. As the disease develops, it gradually expands and increases and fuses into patches. There is a clear infiltration at the base, with clear edges and an inflammatory redness around it. The lesions are covered with silvery-white scales that easily peel off and are mostly pruritic. The scales are easily scraped off in the early stages of psoriasis, and after scraping off the scales, the film phenomenon occurs, and the lesions appear as a red shiny film. 2.Pustular psoriasis is limited to the hands and feet, and patients will have systemic symptoms such as chills and fever, and the lesions will soon spread all over the body. The initial manifestation is inflammatory erythema, slowly on the basis of the erythema form sterile pustules. The pustules are prone to rupture, resulting in the formation of vesicles that dry and crust over time. The lesions often appear in batches and recur after fading, while a small amount of common type lesions appear on other parts of the body. 3, arthritic psoriasis The main manifestation is asymmetric arthritis, most of which appears after a long period of time with the onset of common psoriasis, and patients are often accompanied by arthritic lesions, which manifest as joint pain and swelling, and in severe cases, the joint cavity will appear fluid, affecting normal activities. When erythrodermic or pustular psoriasis is accompanied by arthritis, the symptoms are often more severe and the joints are often destroyed. If the skin is not treated in time, it will rapidly expand into a large area and eventually spread throughout the body, and a diffuse flushing infiltration will appear on the skin. The disease has a long course and is prone to recurrence. The most important thing is that it is not contagious.