Under-eye bags are a result of laxity of the lower eyelid skin, subcutaneous tissue, muscles and orbital diaphragm, thin eyelid skin, thin and lax subcutaneous tissue, and fat behind the orbit, which protrudes to form a bag-like protrusion called an under-eye bag. This produces bags under the eyes. Due to aging and genetic reasons, the muscles around the eyes become loose, which makes the eyeballs fall down and presses the fat in the lower part of the eyes, causing the fat to protrude forward, and visually you will see the lower eyelid area bulging out. Diagnosis and treatment of ageing sagging eye bags: 1, puffy eye bags: eye water-filled, eye blood circulation is blocked, eye cell metabolism is impaired to form waste toxins eye deposits, fat swelling is the main reason for puffy eye bags. Puffiness is also caused by many factors: such as allergies, lack of sleep, improper diet, smoking and drinking, in addition to the use of improper maintenance products such as too greasy eye makeup remover. 2, mixed bags under the eyes: caused by long-term puffy skin and muscle relaxation caused by the crossover of two causes. Both manifested as swollen eye bags, but also manifested as the skin around the eyes, small muscle groups degeneration and relaxation, mixed eye bags are generally stubborn type of true eye bags. The loosening of the muscles around the eyes allows the eyeballs to fall downward, compressing the fat in the lower part of the eyes, causing the fat to protrude forward, and visually you will see the lower eyelid area bulging out, resulting in unsightly and prominent bags. Before going to bed, use your ring finger to lightly press on the central position of the eye belly 10 times, and hold it every night. At present, there are two main types of under-eye bags treatment methods: transdermal approach and transconjunctival approach, which should be clinically analyzed according to the mechanism and clinical type of under-eye bags formation and patient’s specific situation to choose the appropriate operation for treatment. The transdermal approach has a wide range of indications. It is especially suitable for the treatment of moderate to severe bags, and is the most commonly used procedure in clinical practice. The external method is also divided into flap method. The internal method is only suitable for young and simple patients with mildly bulging orbital contents because it cannot deal with the anterior wall of the eye bag at the same time.