Why Do I Look Bigger Later in the Day (Smart Lipo)?

It is great you are seeing some results at this early time. It is almost certain your surgeon explained that the timeframe of healing improves over several months.

You are describing water and swelling. These will continue to diminish. As long as you feel some mild soreness, or see flluctuations, you are not yet at your end point.

The compressive garment is very helpful.  Most of our patients love it.  --some hate it.  But there can be no denying that you will get there faster the more you use it.  

I'm glad you're happy with the SmartLipo.  The reason why you're noticing your stomach is bigger at the end of the day is due to soft tissue swelling during the healing process.  This shouldn't be a permanent issue and will resolve over time.  However, did your physician recommend that you continue to wear your compression garment even 4 weeks out?  Although recommendations will vary from doctor to doctor on the length of time to wear a garment, it is safe to continue to wear the garment even longer than the generally recommended timeframe.  I recommend that patients wear it for 4-6 weeks postoperatively, and even longer in those patients that exhibit more swelling than normal - typically individuals who have high activity levels leading to more persistent swelling.