How long does a #CompressionGarment need to be worn to help after #Liposuction? For most, my patients wear garments for 3 wks day and night then 3 additional weeks for half a day.If you have had suction of the knees, thigh, or abdomen, the doctor will have put on a compression garment at the end of the surgery. The extra pressure this garment provides helps reduce swelling and discomfort. You should not remove this garment at all until the second or third day after surgery. After that, feel free to remove the garment temporarily for laundering. We want you to have circumferential pressure for 4-6 weeks, but you may switch to an exercise garment (Lycra or Spandex) whenever it feels comfortable to slip it on or off, as you will have to do so in order to go to the bathroom. See the below link for a more fuller explanation and general advice.