Among the rheumatologic diseases with Raynaud’s phenomenon, the main ones are systemic sclerosis, systemic lupus erythematosus, myositis, and so on. About 80-90% of patients with systemic sclerosis develop Raynaud’s phenomenon, and about 30% of patients with Raynaud’s syndrome will eventually become patients with systemic sclerosis, and about 35% of patients with lupus may also be accompanied by Raynaud’s phenomenon. In addition to immune disorders, traumatic vascular disease, such as typing, playing the piano, or prolonged exposure to cold, may also cause Raynaud’s phenomenon. In addition, patients with peripheral vascular disease, nerve compression, blood abnormalities, tumors, and hepatitis may experience Raynaud’s phenomenon.