Type: 1. Simple orbicularis oculi muscle hypertrophy pouch has lower eyelid pouch when young because of its genetic status. Its bulge is characterized by clinging to the lower eyelid margin, spreading continuously in an arc shape, and the skin is actually not corrupt, which is more common in young people aged 20~32. 2. Simple skin degeneration This environment is the skin degeneration of the lower eyelid and outer canthus, but there is no orbital septum degeneration, so there is no orbital septum fat bulge and tiny wrinkles around the eyes, which is more common in middle-aged people aged 33-45. 3. Mild and moderate swelling of the lower eyelid is mainly due to the excessive development of orbital septum fat, which is more common in young people aged 23-36. 4. Moderate and severe lower eyelid swelling is accompanied by skin deterioration of the lower eyelid, especially skin, orbicularis oculi muscle and orbital septum, which causes orbital septum fat to prolapse due to gravity. Nervous people suffer from lateral canthus ligament damage, eyelid ectropion, eyelid ball rupture, and tears often appear, which is more common in middle-aged and elderly people aged 45-68. Source: Quanzhou Sunshine Han Chun Plastic Surgery Hospital.