Limited scleroderma is characterized by an increasing number of lesions due to the progression of the disease to more areas of the skin. The exact cause of scleroderma is not yet clear, but is thought to be related to immune abnormalities. The disease can gradually involve multiple systems and lead to symptoms such as swelling and hardening of the skin, atrophy, and myalgia, etc. Limited scleroderma mainly affects the skin, but generally does not involve the internal organs, and the vast majority of the hardening of the skin starts with the hands, and as the disease progresses, it gradually involves the face, neck, and other parts of the body. When limited scleroderma progresses to the sclerosis stage, the skin becomes hard and tight, with luster, and the texture of the skin disappears or is blurred, etc. If the disease continues to progress, it enters the atrophic stage, when the hardness of the skin decreases, the central pigmentation is lost, and scarring and persistent ulcers may appear at the knuckles. It is recommended that patients with limited scleroderma go to the Department of Rheumatology and Immunology of regular hospitals for treatment under the guidance of doctors.