If the suture is tight and the tension of the tissue is small, the probability of scarring is not large, if the suture is not particularly meticulous and the tension is large, there is a possibility of scarring after surgery. 2, whether the healing process is smooth, if there is no infection, the probability of scarring is not large for normal healing, but once the infection or bleeding, hematoma, it will increase the risk of scarring, The risk of scarring will increase if there is infection or bleeding or hematoma. 3. whether to use topical or other anti-scar medication early after healing, medication can inhibit scar growth to a certain extent, but not using medication may make the scar growth relatively strong. 4. whether to avoid spicy and stimulating food or to quit smoking and alcohol after surgery, all of which will affect the scar. Patients are not scar body, also to a certain extent will affect the proliferation of scars, a combination of the above factors, after the external eye bag is not to leave scars, or a lot of uncertainty.