Hip depression on one side may be caused by trauma, malnutrition and lumbar spondylolisthesis. 1. Trauma: the hip muscle is hit by one side of the hip and other traumatic injuries caused by extensive damage to the hip, resulting in necrotic atrophy of the muscle to appear localized depression. Patients should pay more attention to rest, avoid injurious factors, generally no special treatment, pay attention to observation. 2. Malnutrition: Insufficient food, wasting and diabetes can lead to malnutrition, causing fat loss and one side of the buttock depression. Patients should eat more nutritious food, and at the same time, take appropriate exercise to improve the resistance of the body. 3. Lumbar spondylolisthesis: Lumbar spondylolisthesis can cause sciatic nerve pain, resulting in muscle atrophy in the buttocks, resulting in a side of the buttock depression. Patients should change bad habits, pay attention to rest, and avoid prolonged sitting and standing. At the same time, you can follow the doctor’s instructions to take drugs such as celecoxib, ibuprofen, diclofenac and so on to reduce the symptoms. If one side of the buttock depression symptoms continue to be unrelieved, it is necessary to go to the hospital in time to avoid delaying the condition.