2 years post op Tummy Tuck, I found that I have a seroma. What will/should happen now?

You need to go back to your plastic surgeon have the capsule for this seroma removed and the incision closed over the drains with compression. Hopefully this will resolve any further from seroma formation

I am sorry for your complication, but this can be addressed relatively straight-forwardly.  The fluid that has stuck around has developed a lining around it that has prevented your tissues from being able to absorb the fluid.  You need this lining (and the fluid inside it) removed.  This is done in the OR and uses your pre-existing tummy tuck incision.  Drains should be placed and then removed when the fluid output is low enough that it's safe (typically 25-30 cc per day for several days in a row).  You will wear a compression garment to help the new tissues heal together and not allow for this sac/bursa to re-appear.

 A Seroma should generally be drained when it is identified. In the early post-op period drainage can be safely performed in the Plastic Surgeon's office under local anesthesia with a small needle. Occasionally this may require two or three visits, but the seroma generally resolves with this procedure. When a seroma is well established after two years then an operative procedure to remove it may be necessary. The wall of the seroma may not collapse and heal closed with simple aspiration. Please speak with your previous Plastic Surgeon for their advice in your particular case.