system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: What happens when a person gets liposuction in every area of their body? Would they remain thin forever (regardless of how much food they eat?) Or would fat still redistribute?
gpt
A problem that they've discovered with liposuction is that it is *substantially* more unhealthy to get it done than to just be fat.  

Fat is acidic and causes damage to cells.  Ordinarily this isn't a problem because your body stores fat in special cells that are equipped to neutralize the fat's acidity.  When you get liposuction what you're doing is removing most of those cells without removing the underlying cause of the problem (the fact that you're overeating).

Your body doesn't just stop making fat but when there are no specialized fat cells to soak it up then your body's normal cells begin soaking it up.  They're not equipped to handle the acidity of fat and eventually die from it.  This is actually what causes obesity related diabetes.

Under normal conditions your pancreas will not store fat.  But when you're morbidly obese it begins to do so.  The acidity of that fat eventually kills the insulin producing cells in your pancreas and then you get type 2 diabetes.  When you get liposuction all you're really doing is speeding that process up because now your pancreas is storing fat under normal conditions since the fat has nowhere else to go.

After your pancreas dies off that fat begins getting shunted into your liver.  You then develop fatty liver disease which eventually leads to liver failure, at which point you die.

In short, what happens if you liposuction all of the fat out of your body is that your pancreas and liver swell up with fat and that causes some fairly horrible medical problems with an associated reduction in your life expectancy.