Behind the skin and muscles of the lower eyelids, there is a membranous connective tissue that prevents the fat in the lower eye socket from protruding outward. When the eye socket fat is excessively accumulated, or the strength of the film tissue becomes weak, the fat bulges, making the lower eyelid look like a bag, which is called the "under the eye bag." In addition, the spirit of the night is not good, and then the lymphatic circulation speed will slow down, and the "waste" that cannot be discharged smoothly will gradually accumulate. Over time, it will also produce annoying eye bags.