Leukoarai syndrome, also known as Behçet’s syndrome, is a systemic immune system disorder and a type of systemic vasculitis. It can invade several organs of the body, including the mouth, skin, joints, muscles, eyes, blood vessels, heart, lungs and nervous system. It mainly manifests as recurrent ulcers in the mouth and perineum, rashes, nodules in the lower extremities, erythema, iritis of the eyes, esophageal ulcers, small intestine or colon ulcers and painful swollen joints. Behçet’s syndrome requires standardized drug therapy, including various immunomodulatory drugs, and the prognosis is poor without treatment. The cause of its occurrence is unclear and may be related to genetics, infection, and living environment, etc. It occurs in all types of people, and is more common in middle-aged and young adults. Bechet’s syndrome is mainly treated with medications, which need to be taken for different lengths of time, mainly immunomodulatory or immunosuppressive drugs, and if there are indications, some organ damage related to leukoaraiosis can also choose surgical treatment or interventional treatment.”