1. After filling, the fat is absorbed to some extent, which requires reoperation to ensure the best effect;

2. The fat after filling is unevenly distributed, so massage is needed to make the fat cells evenly distributed as much as possible;

3. Too much fat or too concentrated injection, a large amount of fat accumulation will lead to fat necrosis, which will be dissolved and absorbed due to insufficient blood supply, which will easily lead to sequelae such as infection, fibrosis or calcification and fat necrosis;

Autologous fat transplantation is not a new plastic surgery technique. The most commonly used facial curve defects, such as eye socket depression, temple depression, cheek depression and scar depression caused by trauma or emaciation, can be transplanted with autologous fat.