I am 10 weeks PO tummy tuck. Can I still develop a seroma?

Congratulations on your recent surgery. I let my patients start to gently increase their physical activity back to normal starting at 6 weeks. I recommend a slow and progressive increase of activity rather than jumping back into your former routine. It would be unusual but not impossible for you to get a seroma at this point. If you are very worried, you will be safest to start with nonimpact exercise first. Running and jumping are more traumatic and more likely to lead to a seroma. But by 10 weeks you should be well healed enough to do any of these activities. Good luck!

The further you are out from surgery, the less likely you will develop a seroma.  This is more common in the early post-op when the drainage remains high.

If drains are used then seroma are usually seen within a week after removal. As time passes after surgery a seroma becomes less and less likely. It's unusual to develop a seroma 10 weeks after surgery unless you had drains that were removed at 8 or 9 weeks. If you are unsure then ask your surgeon.