Spacer lipolysis for waist slimming is a non-contact treatment method that uses selective radio frequency technology to induce natural death of fat cells by transmitting high-frequency wave energy to the fat layer without damaging the skin and muscles, properly injecting a certain swelling solution to dissolve the fat and prompting it to be discharged from the body, thus achieving the efficacy of slimming and slimming the body. If the operation is carried out in a regular professional medical cosmetic surgery institution, there are generally no side effects. However, there may be slight pain at the treatment site during the procedure, which is usually within the tolerance range of most people. If the medical staff does not operate properly or the patient does not take proper care after the operation, complications such as seroma, skin petechiae, skin numbness or pain, hyperpigmentation, subcutaneous hard nodules, etc. may occur after the treatment, which can recover on their own in mild cases, while serious operation errors can also lead to sequelae such as skin burns, necrosis and scar growth. Therefore, it is recommended that patients go to regular professional medical plastic surgery institutions for consultation, to be able to avoid side effects under the protection of professional technology. In addition, the effect of spacer lipolysis can usually be maintained for a long time. For those who have local fat accumulation of more than 1.5cm, the ideal lipolysis effect can be achieved after 4 times of a course of treatment. After the treatment, maintaining a balanced diet and moderate exercise can also maintain the effect for a long time and it is not easy to rebound.