Thigh liposuction is a common type of cosmetic surgery, liposuction pain and more than 1 month, the majority of peripheral nerve intervention or small injury, specific pain relief methods are as follows: 1, the majority of patients can be relieved by rest or drug adjustments, such as patients available vitamin B2, vitamin B12, vitamin B1, vitamin B6 and other peripheral nerve regulating drugs to help peripheral nerve 2, patients can also be treated by local injection to quickly eliminate the inflammatory state of the peripheral nerve; 3, if such pain for more than 3 months and does not heal, consider the injury to the larger dermal nerve or chronic inflammatory irritation and lymphatic damage and so on. At this time, patients need to go to the hospital for electromyography, ultrasound examination, etc. to clarify whether there is damage to peripheral nerves or soft tissue adhesions, so as to carry out corresponding treatment. Plastic surgery requires high clinical experience and delicate operation, so patients are recommended to go to regular hospitals for cosmetic surgery treatment.