My 4 month old border collie mix was spay 9 days ago. On day 7 she had a swollen lump under her incision site. I took her to her vet yesterday and it was determined to be a seroma and they said to continue her on crate rest for several more days. I have read that it can take a month or more for a seroma to go down and the fluid reabsorb. She is by nature an extremely active puppy. We play outside for with her for a couple of hours most days, where she fetches balls, frisbees, etc and runs like crazy. We were hoping that after 10 days we could get back to playing. How long do you recommended we wait. The fluid filled lump is about the size of a lemon.