The essence of a scar is an abnormal tissue that does not have the normal skin tissue structure and physiological function. Scarring body means that the surface scars are persistently increasing in size, which not only affects the aesthetics of the body surface, but also leads to local pain, redness and itching, and the contraction of scars may even affect the functional movement of the body. In daily life, even with smaller wounds, skin proliferation can be more severe, forming the so-called scar bodies and scars. For patients with scar bodies, clinicians generally do not recommend double eyelid surgery because more serious scar hyperplasia will occur after surgery, making it difficult to achieve aesthetic results and even uglier than before surgery. In addition, if you choose the buried wire method and small incision incision, although the wound is smaller, the same wound will also be present and lead to scar growth. After the destruction of body tissues, candidates with scars may grow bigger scars compared to the general population. Therefore, patients with scars are not suitable for double eyelid surgery.