Seromas. Where exactly is the fluid coming from?

I recently underwent gynecomastia surgery and developed a small seroma on one side. The literature on seromas is scarce, so I'd like to know: what exactly is the source of the fluid produced when one develops a seroma? Damaged blood/lymph vessels that have not yet fully healed? If so, does the resolution of a seroma simply depend on the healing of said blood/lymph vessels in conjunction with serial aspiration? My incision has already fully healed, so why is the internal healing lagging behind?

Doctor Answers 4

Seroma Concern After Gynecomastia Surgery

#Seroma which is a collection of fluid under the skin,  occasionally occurs during the postoperative period. Aspiration of the fluid with a needle is frequently helpful. Secondary surgery is rarely necessary. Bruising and #swelling are normal and usually increase slightly after the removal of any tape or foam. The bruising will decrease over 3-4 weeks, but may last as long as 6 weeks. The majority of the swelling will be gone within the first 3-4 weeks. However, it may take 6-9 weeks to disappear completely.  Also, as you heal, the area may feel “lumpy” and irregular. This, too, decreases with time, and massaging these areas will help soften the scar tissue. The #compression garment helps reduce the swelling, and the longer it is worn, the more quickly you will #heal. It can also assist in the retraction of the skin.

If you have any concerns about #healing, its best to ask questions of your surgeon or their nursing staff.


Orange County Plastic Surgeon
5.0 out of 5 stars 96 reviews

Were do seromas come from?

Your body does not like to have big empty spaces.  After removing any tissue if it is not filled with something else or we do not collapse a tissue it'll fill up with fluid that the body produces on its own.  Is a risk faced after any procedure.  What are the things that we do to try to prevent this is applying pressure on the surgical site usually with compression garments in the case of gynecomastia or liposuction.

Adam Hamawy, MD
Princeton Plastic Surgeon
4.8 out of 5 stars 43 reviews

Seroma Fluid Origin

Seroma fluid is simply the normal interstitial fluid (that which is usually between the cells). It leaks into any open space such as an undermined area from surgery. Unfortunately, the longer the area remains "open," the harder it is to eliminate as scar tissue tends to keep secreting fluid. Collapsing the space will allow the tissues to seal together. If the space does not seal quickly, something will need to be done to change the scar into something that can heal.

Robert T. Buchanan, MD
Highlands Plastic Surgeon
5.0 out of 5 stars 5 reviews

Seroma fluid

Seroma fluid is normally from the lymphatics and their channels that have been disrupted during surgery. Best of luck.

Steven Wallach, MD
New York Plastic Surgeon
4.1 out of 5 stars 24 reviews

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