Many patients do not know where the common onset of psoriasis is, resulting in patients not being able to get good care, and aggravation of the condition may occur. The main sites of psoriasis on the body are the following: 1, psoriasis palms and feet heart part of the lesions, lesions appear obvious keratinized patches, central thick, edge thin, may also be accompanied by white scales or dotted depressions, sometimes due to thick lesions will form stripes skin fissures. 2, psoriasis of the lower leg lesions, lesions easy to infiltrate hypertrophy, with tinea-like changes, rather like chronic eczema. 3, psoriasis facial lesions, lesions are mostly dotted or nail-sized red papules. 4, psoriasis head lesions, this condition often appears in the early stages of common psoriasis, often born in the hairline, or sometimes fused into patches, covering the scalp. The scales on this part of the body are thick, the hairs are clustered, and sometimes covered with thick yellow scabs, which should be distinguished from seborrheic dermatitis. 5, psoriasis skin damage at the joints, axillae and other flexural areas, the distribution of lesions mainly flexural patients accounted for about one percent of the total number of patients. The lesions mainly involve the groin and generally have little peeling, rounded surfaces, and clearly visible onset sites. The actual fact is that you can find out where the common psoriasis sites are, people should pay attention to checking and caring for these locations in their daily lives, in order to effectively avoid psoriasis disease, and if the onset of the disease, can also be diagnosed and treated in a timely manner when the condition is lighter in the early stages, which is of great benefit to the recovery of the disease.