No, it is normal for the eyes to be swollen after double eyelid surgery, and it usually takes several months for the swelling to subside. Double eyelid surgery, also known as blepharoplasty, is one of the most common surgeries in plastic and cosmetic surgery. Generally speaking, double eyelids visually enlarge the outline of the eyes, add a three-dimensional sense to the eyes, make the eyes appear larger, and make the eyelashes upward, giving people a vivid and expressive feeling. However, those with single eyelids have thicker eyelids and drooping eyelashes, making their eyes appear smaller, dull, and lack of vitality. In addition, more Asians have single eyelids, accounting for more than 50%, so there are many people seeking the surgery.