Is it normal to have only lost 4 inches in 4 months post smart lipo?

The number of inches lost after lipo is variable and depends on how you measure it (calipers, tape, body scan, etc). It's more important that the visual result is something that looks appealing to you. Obviously, if you start with more inches of fat to remove, you can achieve more of a loss than if you're a Victoria's Secret model looking to add definition. In performing these procedures, the surgeon pinches the fat layers to make sure enough fat is removed to reshape the areas smoothly, but not so much that the skin gets damaged. Don't feel like you should have lost more inches. It's a meaningless number and not a valid endpoint.

4 inches is a significant reduction in waist size after lipo.  hopefully, you can compare your before and after photos and see the dramatic difference!

It sounds like you are doing very well after your laser liposuction. 4 inches is a significant amount to lose. You may end up seeing more improvement over the next couple of months as swelling can persist for 6-8 months after liposuction. Be well, Dr. M