Cyst and lipoma removal: why the capsule matters
The difference between a cyst that never returns and one that comes back in eighteen months is decided in theatre.
Written and clinically reviewed by Dr. G. Revanth, MBBS DDVL DNB · August 2026 · 2 min read
A cyst recurs if any part of its capsule is left behind, so the whole sac is removed intact rather than drained. Removal takes twenty minutes to an hour under local anaesthetic, the specimen goes to histopathology, and the main thing being watched afterwards is whether the cavity left behind seals or fills with fluid.
Draining is not removing
Squeezing or draining a cyst empties the contents and leaves the sac. The sac is the cyst. It refills, usually within months, and each episode of inflammation makes the eventual excision harder because the capsule becomes adherent to surrounding tissue.
This is why an inflamed cyst is often settled first with antibiotics and removed later, rather than excised while it is hot.
The dead space nobody mentions
Removing a lipoma or a large cyst leaves a cavity. The pressure dressing applied afterwards is doing real work: holding the tissue planes together so they seal rather than filling with serous fluid. Loosening it early is the commonest reason a straightforward removal develops a collection.
- •Leave the pressure dressing exactly as applied, for the full period specified
- •Report any soft, fluctuant swelling under the wound — it is easily managed early
- •Do not massage or press the area to check whether anything is left
Scar tissue is not recurrence
A firm lump under the healing scar in the weeks afterwards is almost always organising scar tissue, and it softens over months. A recurrence is different: a discrete, mobile lump at the same site, appearing later. If you are unsure, that is what the review is for.
Where the scar will be worst
Back, chest and shoulder. Those sites sit under constant skin tension, the incision has to be long enough to deliver the capsule whole, and the resulting scar widens easily. Silicone, taping and six weeks without loading the area matter more there than anywhere else on the body — and you should be told that before the operation, not after.
Full protocol in the aftercare guide.