Liposuction is not a weight loss regime; it is done to remove lumps and bumps of fatty tissue that look unsightly, but it is really for sculpting the body shape, not to lose weight. That said, some weight loss will occur after it because during the procedure fat is sucked out of the body.
After the procedure you will find that there is swelling and some hardness as the body works to break down and get rid loosened fat deposits that were not removed. This can last up to 6 months, depending how comprehensive the liposuction was. But often swelling has all disappeared by 3-4 months. There are some things you can do both before and afterwards to help get the best results from your liposuction procedure.