How long does it take a seroma to go down after being drained? Or should it have gone after the aspiration?

Of course, this depends on the size of the seroma, but usually six weeks is an appropriate length of time to see what the final result will be.

Seroma aspiration can be a serial process. Occasionally, the first drainage will followed by a second albeit smaller drainage. This is ultimately a function of how large the collection is and how long it has been present. If the seroma is resistant to repeated drainage, it may require drain placement or operative revision with excision of the seroma capsule.With regards to your specific question, momentum is the key. A seroma which lessens with subsequent drainage attempts will likely resolve over time. It is difficult to predict how long this will take.As always, discuss your concerns with a board certified plastic surgeon (ABPS).Donovan Rosas MD
Board Certified by the American Board of Plastic Surgery
Member: American Society for Aesthetic Plastic
Surgery, American Society of Plastic Surgeons
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