MyBCTeam

What is a seroma?

A seroma is a pocket of clear fluid that collects under the skin after breast cancer surgery. It typically appears within a week to a week and a half after a lumpectomy or mastectomy.

You might notice swelling or a feeling like there's fluid moving under your skin. Some MyBCTeam members describe it as Show Full Answer

What is a seroma?

A seroma is a pocket of clear fluid that collects under the skin after breast cancer surgery. It typically appears within a week to a week and a half after a lumpectomy or mastectomy.

You might notice swelling or a feeling like there's fluid moving under your skin. Some MyBCTeam members describe it as feeling like "Jell-O" or a "waterbed" in their chest.

What causes it?

While doctors don't fully understand all the causes, inflammation and disruption of blood and lymph vessels during surgery likely play a role. Risk factors include:

- Moving your shoulder too much or too soon after surgery
- Having a radical mastectomy rather than simple mastectomy
- Having drainage tubes removed too soon
- Increased body weight
- Having multiple lymph nodes removed

How is it treated?

Many seromas resolve on their own within a month, though some can take up to a year. If your seroma isn't painful and doesn't limit movement, your doctor may recommend just monitoring it.

Treatment options include:
- Reinserting drainage tubes if needed
- Draining with a needle (aspiration) if it's causing pain, pressure, or limiting shoulder movement
- Sclerotherapy if it keeps returning

Is exercise safe?

Yes! Early postoperative exercises like stretching and range-of-motion training may actually help prevent seromas. Research shows that people who exercise twice daily after lymph node removal are less likely to develop seromas.

However, avoid:
- Lifting heavy objects for several weeks
- Running and jumping that jostle the breast
- Repetitive motions like vacuuming if you had lymph nodes removed

Always follow your doctor's specific guidelines for your situation.

 AI-generated responses are not a substitute for medical advice. These services are not intended to diagnose, treat, or cure any condition or disease. Always ask your doctor about specific health concerns.

Seroma After Breast Surgery: Causes, Safe Exercise, and More