Dilated capillaries are small, thread-like lines of blood vessels that are visible on the surface of the skin. Capillary dilation that appears on the face affects the body’s beauty. Capillary dilation is a general term for this type of disease. Capillary dilation can occur in normal skin of any age, in both sexes, and in any part of the skin and mucous membranes. Fine capillary dilation can be seen on the nasal flanks of most adults. Capillary dilation can be seen in areas of chronic sun damage with long-term topical corticosteroid application. In addition, people exposed to wind, cold, and heat for long periods of time are prone to capillary dilation. Medications such as nifedipine and felodipine can cause capillary dilation in light-exposed areas. Capillary dilation can also occur in the lower legs and is caused by genetics, varicose veins, pregnancy, and use of birth control pills. Capillary dilation can be seen in many diseases such as radiation dermatitis, staining dry skin disease, lupus erythematosus, scleroderma and CREST syndrome, rosacea, pregnancy, cirrhosis, AIDS, skin heterochromia, basal cell carcinoma, diabetic fat necrosis, sclerosing atrophic moss, nodular disease, lupus vulgaris, keloids, sebaceous adenoma, Kaposi’s vascular endothelioma, creeping hemangioma, diffuse somatic angiokeratoma, ataxia capillaris, hereditary benign capillary dilation, Cockayne syndrome, and Bloom syndrome. Treatment of capillary dilation, which had no special treatment in the past, is a medically intractable treatment problem. And radiofrequency ablation was first used in China and abroad for the treatment of supraventricular arrhythmia, and later for the treatment of nerve block, lumbar disc herniation and tumor. It is a high-tech technology that is being widely used in clinical treatment internationally. Scarless radiofrequency ablation to remove capillary dilation treatment technology. Its principle is to effectively coagulate and close the dilated capillaries according to the different absorption of radiofrequency by the dilated capillaries and the skin, so as to achieve the purpose of effectively eliminating the dilated capillaries.