1. Which is safer and more effective, injections or liposuction?

2. Will it leave scars?

3. Will liposuction or injections make the saddlebag lines smooth and less bumpy? An acquaintance of mine had thigh liposuction, but said the lines are uneven and don't look very pretty when wearing shorts.

4. Will I experience a rebound effect (yo-yo effect) after liposuction or injections?