The short answer is yes, you can regain fullness in the abdomen after a tummy tuck. However, there's a bit more nuance to it than that. A tummy tuck removes loose skin and often some fat, but it doesn't change how your body stores fat going forward. The fat that's removed is gone, but the fat cells you still have can expand if you gain weight, and the abdomen can become fuller again. Two helpful things to keep in mind: If you have liposuction with your tummy tuck, you may have fewer fat cells in that treated area, so weight gain might show up a little less there compared with untreated areas. But it's not "weight-gain proof." Many people may notice weight gain more in other areas, like the flanks, back, thighs, or arms, depending on where they naturally store fat. The best way to protect your results in the long run is to aim for a stable, maintainable weight both before and after your procedure. Small fluctuations are common and usually fine; it’s the bigger, more sustained changes that tend to change the contour of your abdomen over time.