It is a normal physiological manifestation that the outer muscles of the human buttocks are only the gluteus medius and gluteus minimus muscles and are not covered by the gluteus maximus muscle, so a mild local depression can be seen, which is normal. Some people are sedentary for a long time or bedridden due to illness, which can lead to disuse atrophy of the hip muscles. In addition, for some patients with lumbar spine diseases, nerve atrophy of the hip muscles due to nerve compression may also lead to depression on both sides of the hip. If the concavity on both sides of the buttocks is serious and affects the beauty, it can be improved by means of hip exercises and medical aesthetic surgery. A, hip exercise: 1, kneeling posture after lifting the leg: the main training gluteus maximus, bend down and kneel, arms located directly below the shoulders, single leg lift backwards, keep the back straight, hip joint stability, hip force, can repeat 15-20 times; 2, deep squat: the main exercise gluteus maximus, gluteus medius, legs open and shoulder width, waist and back straight, abdominal hip force backwards, bend knee squat, thighs parallel to the ground, knees and Toes in line, can be repeated 15-20 times; 3, single-leg hard pull: the main exercise gluteus medius and gluteus minimus, single-leg stand, keep the body stable, single-leg lift backwards, upper body straight and bending hip, upper body as far as possible parallel to the ground, the spine and hip joint to maintain stability, the apex of a slight pause after the rise and restore, can be repeated 12-15 times. Second, medical aesthetic surgery: the depression on both sides of the buttocks can also be filled with autologous fat, by pumping excess fat from the waist and abdomen to fill the depressed areas. The chance of rejection is low, the touch is realistic, and the absorption rate can reach 80%, but it is recommended to choose a regular hospital for the surgery to prevent post-surgery infection and local depressions. In addition, it should be noted that it is recommended to perform the exercise under the guidance of professionals to avoid causing injury. In addition, the sunken sides of the buttocks can also be improved in daily life by adjusting the dietary structure, increasing more foods with high protein content, such as lean meat, eggs, milk, etc., which can help muscle growth, and also consuming more fresh vegetables and fruits to supplement vitamins. At the same time, you can adhere to regular exercise, which can also better improve the situation of sunken sides of the buttocks.