(1) Squamous cell papilloma Squamous cell papilloma is the most common benign tumor lesion of eyelid, which mostly occurs at the edge of eyelid and can also be seen in eyelid skin. The clinical manifestation is a pedicled or broad-based skin mass with a papillary surface and blood vessels in the nipple. These lesions are similar in color to the adjacent skin. Pathological examination showed that the hyperplastic squamous epithelium covered the vascular fibrous connective tissue, showing finger-like processes, with incomplete or hyperkeratosis on the surface. Surgical resection is suitable for treatment, and incomplete resection can lead to tumor recurrence. (2) Hemangioma Hemangioma is not a real tumor, but a congenital abnormal development of vascular tissue, which can exist at birth or occur within 6 months after birth. Capillary hemangioma and cavernous hemangioma are divided into two types: ① Capillary hemangioma, accounting for 60~70% of eyelid hemangioma, and the eyelid skin on the affected side is dark red or bright red, flat and slightly raised, and it is dark purple or light blue if it is located in the deep skin. According to the surface conditions, it can be divided into flame nevus (also known as wine nevus) and strawberry nevus. The former has a flat surface, while the latter has papillae. ② Cavernous hemangioma, generally older children, with deep lesions, is a lilac soft nodular mass with elasticity and compressibility, which can penetrate deep into the orbit. Histologically, it consists of many vascular sinuses of different sizes. Hemangiomas are on the verge of self-regression, but if they cause eyelid dysfunction, they should be treated. Small or capillary hemangioma can be treated by intralesional injection of glucocorticoid, cryotherapy or surgical resection. Large or cavernous hemangioma should be surgically removed. (3) Most moles occur before birth, and a few occur in adolescence. Moles vary in size, shape and color, brown or black, with smooth or protruding surfaces and clear boundaries. Small and static, not rapidly increasing, blackening or bleeding, without treatment; Rapid increase, suspected malignant transformation should be surgically removed. (4) Chloasma is a kind of fatty degeneration and pigmentation of connective tissue, which is more common in elderly women. Bilateral symmetrical flat bulges appear in the skin and subcutaneous of the upper eyelid and lower eyelid, showing yellowish patches and soft texture. Chronic progressive enlargement of the lesion. If it is cosmetic surgery, laser or surgical resection is feasible. (5) Dermoid cyst is a congenital developmental abnormality. Cyst is round or oval, with smooth and clear boundary, certain elasticity and fluidity. It lives under the skin and does not form dry connection with the skin. The capsule cavity can be single-chamber or multi-chamber. The outer layer of the cyst wall is connective tissue and the inner layer is stratified squamous epithelium. The contents of the capsule cavity contain sebaceous gland secretions, hair and cholesterol. Can be removed by surgery.