Is it normal to have a lump under incision after surgery?

Fluid builds up under the skin where tissue was removed. It may form soon after your surgery. Or it may form up to about 1 to 2 weeks after surgery. It may look like a swollen lump and feel tender or sore.

What is the lump under my incision?

What’s a seroma? A seroma is a collection of fluid that builds up under the surface of your skin. Seromas may develop after a surgical procedure, most often at the site of the surgical incision or where tissue was removed.

Why is there a lump in my scar?

What causes keloids? After your skin is injured, your cells try to repair it by forming a scar. In some people, the scar tissue keeps forming long after the wound heals. This extra scar tissue causes the raised area on your skin that is called a keloid.