If a nevus is surgically removed in a tertiary care hospital, the general cost of surgery in outpatient treatment is about 300-500 RMB, and postoperative pathology of the nevus may also be required for about 100 RMB after surgery. If the nevus is benign, the basic outpatient treatment should not be more than 1000 RMB, and then it can be completely cured. However, there are many nevi that are found to have malignant changes or bad pathology after excision, so a second surgery may be required to remove the rest of the normal tissues in an expanded manner, and the cost of excision may reach 3000-5000 RMB. Because hospitalization is required, and post-operative radiotherapy and chemotherapy may also be required, other costs than surgery alone may be increased accordingly.