The problem with gas after liposuction is not directly caused by the procedure. The most likely cause is taking pain meds afterwards. Opiods are commonly associated with nausea, vomiting, constipation and gas.
Liposuction does not cause flatulence. Perhaps taking opioid pain medication during or after the procedure can lead to constipation which can cause different flatulence patterns.I suggest focusing questions on plastic surgery.Best, Mats Hagstrom MD