The cost of surgical excision of a small eyelid margin pigmented nevus is$172-$560 for a surgical excision that does not involve the eyelid margin grey line, the cost of repair of an eyelid defect in the same period of time of the eyelid after removal of the mass is$390-$1200, the cost of pathologic examination of the pigmented nevus is$100-$200, the cost of sutures is about$200 for absorbable sutures, and the cost of preoperative laboratory tests is about$300-$500. Medium-sized eyelid margin pigmented nevus, if the pigmented nevus is full-layer, the excision fee is$172-800, after the swelling is excised involving the full-layer repair of eyelid defect, the cost of surgical repair is$800-1500, involving the part of the eyelid, the cost of the plate or full-layer reconstructive surgery is$1,600, and the overall cost comes down to$2,000-3,000. Eyelid margin pigmented nevi are mostly benign, rarely malignant, and the malignant ones tend to change in growth rate over a short period of time, and are deeply versed in color, sometimes brown and dark green. Many patients come to the clinic and surgery because the pigmented nevus is aesthetic, because it is too close to the eyes, and cannot go to the dermatology department for laser and freezing, for fear that it will cause eyelid deformity, or eyelid defect, or eyelid margin incision, or angular deformity; another part of the patients come to the surgery for fear that the pigmented nevus will become malignant. In some cases, the nevus looks like a pigmented nevus, but when it is removed and pathologically examined, it turns out to be basal cell carcinoma, squamous carcinoma, or adenocarcinoma of the eyelid. Therefore, for middle-aged and old-aged patients, if the nevus has grown significantly, it is important to have it done as soon as possible. However, the smaller the nevus, the simpler and easier it is to operate. Of course, if the nevus is too small to be easily detected and the patient is very young, or even a child, and it does not affect the appearance of the nevus, then it can be observed, and there is no need to rush to operate.