Tear trough often cannot recover on its own and can be treated with physical therapy, injectable fillers, and surgery. Tear trough is a groove-like depression at the lower edge of the eye near the side of the nose, and its occurrence mechanism is complex. Currently, it is mostly believed that the formation of the tear trough is related to factors such as gravity, aging of the skin, aging of the fat structure, aging of the ligament structure, and so on. In the young group, the tear trough is mostly due to genetic factors, and in the middle-aged and elderly groups, the formation of the tear trough is mostly related to ocular aging. Tear trough is an irreversible eye symptom that usually cannot recover on its own, and those who have cosmetic requirements can take medical cosmetic treatment. Commonly used treatments include physical therapy, such as laser treatment. Injectable fillers include autologous fat fillers and hyaluronic acid fillers. Surgical treatments for lower blepharoplasty include transdermal and transconjunctival approaches. There are individual differences in the specific treatments, so it is recommended to visit a regular medical institution for treatment.