17 days post Smart Lipo on arms. Do I have swelling above elbow or is it still fat?

Arms can develop a large degree of swelling if compression garments are not properly worn or not tight enough. Double check with your surgeon to see if you have a hematoma. If they were smaller after lipo, it's probably fluid. Fat doesn't magically grow back. Go for massages as well.

After a Smart Lipo procedure, it’s common
for swelling to last for several weeks to a few months. What you’re
experiencing should dissipate over time, and the best thing you can do to aid
in the healing process is to continue wearing your compression garment as
directed by your surgeon, as well as keeping your sodium intake low. It’s
common for swelling to occur in the lowest part of the treated area, which for
you lands at the elbows. This may explain the current size and tenderness of
that location. If you continue to be concerned or uncomfortable, it’s important
that you follow up with your surgeon.

Thank you for your question. It is common to have swelling after liposuction. It is very early to comment whether it is swelling or Fat. Swelling will continue to go down next few weeks. After few weeks it will be better reevaluate to see if it is fat or not. We recommend in general 6 months to wait if we need to do any revision. If it is a fat it can be easily fixed. Good Luck