Bloating after Liposuction Bruising and swelling (bloating) are normal in the suctioned areas and usually increase slightly after the removal of any tape or foam. The bruising will decrease over 3-4 weeks, but may last as long as 6 weeks. The majority of the swelling will be gone within the first 3-4 weeks. However it may take 6-9 months to disappear completely. The compression garment helps reduce the swelling, and the longer it is worn, the more quickly the process will proceed. The other major reason is constipation which is common after decreased activity during recovery and from narcotic pain medications. If you have any concerns about extreme bloating, notify your plastic surgeon to get it examined.