1. destroys the normal function of eyelid or the function that should be obtained after operation, such as weakness in opening eyes.
2. Leave obvious surgical traces, such as scars, depressions, folds, small pieces of meat, etc.
3. Postoperative unnatural, such as: too wide, too narrow, inappropriate shape, uncoordinated, etc.
Generally speaking, if double eyelid surgery's sensory effect is not ideal or his own aesthetic changes, I suggest that it is best to repair it after 3~6 months, so as to restore the eye muscle tissue and avoid causing more trauma. If it is repaired many times, it may cause tissue adhesion, and the repair is becoming more and more difficult. Therefore, choosing an experienced and skilled doctor can improve the success rate of the operation.