Psoriasis is also known as psoriasis in clinic, and psoriasis on buttocks may be related to genetic factors, environmental factors, immune factors and other reasons. 1. Genetic factors:If the patient’s parents suffer from psoriasis, it may be passed on to the next generation, thus psoriasis may appear on the buttocks. 2. Environmental factors: Environmental factors that trigger psoriasis on the buttocks generally include alcohol consumption, smoking, trauma and infections. 3. Immune factors: Immune response produces a series of toxic cytokines, which lead to abnormalities in the proliferation and differentiation of epidermal cells, thus forming psoriasis on the buttocks. For patients with psoriasis on the buttocks, it is recommended to go to regular hospitals for timely examination and standardized treatment under the guidance of professional doctors.