After liposuction, you should put on a corset according to the doctor's requirements, or "medical elastic suit" to be exact, to evenly compress the whole operation area, avoid hematoma, and the skin will not become slack. It usually takes three months to wear. But there are also individual differences. If you are young, you can wear 1 month just by liposuction on your arm. Older skin is loose and has poor elasticity, so it needs to be worn for more than 3 months.