Dermatologic surgery is an important part of dermatologic treatment. It is a branch of dermatology based on the discipline of dermatology, using surgical and other technical means, and organically combining aesthetics, cosmetology and skin science in the treatment process to treat certain skin diseases in order to achieve perfect treatment results for the body surface. Treatment scope 1.Benign tumors such as pigmented nevus, lipoma, dermatofibroma, sebaceous cyst, seborrheic keratosis, sebaceous nevus, epidermal nevus, superficial lipoma-like nevus, etc. 2.Malignant tumors such as basal cell carcinoma, squamous cell carcinoma, Bowen’s disease, solar keratosis, Paget’s disease, malignant melanoma, etc. 3.Congenital malformations and hereditary diseases such as paronychia, hemangioma, axillary odor, etc. 4.Infectious diseases: such as abscesses of skin tissue caused by bacteria, fungi, viruses and other pathogenic microorganisms infections, various viral warts, etc. 5.Cosmetic skin surgery treatment: white keloid, pigmented mole, congenital birthmark, rosacea, keloid, bad tattoo, etc.