People with psoriasis can drink some coffee in moderation; drinking large amounts of coffee is not recommended. Psoriasis may be related to genetic, immune and other factors, and manifests itself as red patches of skin covered with silvery-white scales. There is no research showing that coffee can induce or aggravate psoriasis, so patients are allowed to drink coffee normally. However, coffee intake should be in moderation, a large amount of drinking may appear gastrointestinal dysfunction, nervous system over-excitement, cardiac arrhythmia and other adverse reactions. Psoriasis patients need to follow the doctor’s instructions to strictly use medication, and at the same time need to closely observe the changes in the skin lesions, if there is an expansion of the skin lesions, should go to the hospital in time to consult the doctor for treatment.