What exacly is the red stuff that gets sucked out with the fat? (Photo)

Thank you for your question.  The yellow upper portion of each container is the fat removed during liposuction. The darker colored fluid underneath is a combination of blood and the fluid placed to perform liposuction which has the numbing medication and adrenaline to limit blood loss.  You are able to shower without the garment in place, but timing should be deferred to your plastic surgeon as they know what took place during your surgery.  I can not see any measuring levels on the containers, so its difficult to know how much was removed.  

The fat in the photograph is yellow. The pink or purple colored fluid is primarily the tumescent fluid used to prepare the fat for liposuction plus a very small amount of blood which gives it the color.

The "red stuff" is a mixture of fluid and blood (mostly fluid injected prior to the suction).  The yellow is mostly fat.  Assuming these are 1 liter containers, there is approximately 4 liters of fat, just over 4 quarts.  The post op instructions should have been provided for you in detail by your surgeon or the office.  Since we all treat it differently (meaning there is no "best" way), contact the surgeon's office to find out how they like to handle it.  The final result depends less upon what you do afterwards than it does the skill of the surgeon as well as your particular type of fat and how it responds to the suction.  

A mixture of blood and tumescent fluids. Appears as 3 liters but bot sure. Best to see your chosen surgeon for detailed postop instructions.......

Quick answer: bloody tumescent fluid. Most lipo procedures begin by placing a volume of saline with lidocaine and epinephrine in an amount equivalent or greater than the volume expected to be removed. This reduces blood loss, promotes anesthesia, and helps liquefy and remove the fat.I allow my patients to shower after two days, but you should follow your surgeon's recommendations.Is there a prize for guessing the aspirate amount correctly? I guess 9.5 liters. Please let me know if I win!