Psoriasis (PsO) is a common chronic relapsing inflammatory disease, induced by a combination of genetic and environmental effects, which seriously affects the quality of life of patients.Psoriasis Area and Severity Index（PASI score ） ，as the most common method used by clinicians to assess the severity of psoriasis and the effectiveness of treatment, has the disadvantage of being subjective and superficial.We are therefore committed to establishing an objective, real-time, repeatable, non-invasive, microscopic assessment using high-frequency ultrasound. This study will use high-frequency ultrasound to detect the patient's lesion site and the 2cm site next to the lesion once, and the study will continue to recruit for 6 months.
Patients who meet the medical criteria for plaque psoriasis
Those who voluntarily participate in this study and sign the informed consent form
Patients with other types of psoriasis
Those with other active medical conditions that may affect assessment
During a severe uncontrollable acute or chronic local or systemic infection
Those with severe mental illness, cognitive impairment, and incapacity for personal behavior that makes them unsuitable to participate in a clinical study