Back to all conditions
Skin changesA lump I can feel

Dermal Fibrosis

Dermal fibrosis is a benign thickening and hardening of the skin caused by extra fibrous tissue.

What it is

This is a harmless condition where fibrous tissue builds up in the middle layer of your skin, called the dermis. This buildup makes the skin in that area feel thicker, harder, and less flexible. It can happen anywhere on the body, including on the breast.

How common it is

Dermal fibrosis is not a very common finding on its own. It can sometimes appear after an injury or radiation, or be related to other health conditions.

What you may notice

You might feel a patch of skin that is firm, thick, or hard. The skin may look shiny, tight, or be a slightly different color than the skin around it. Sometimes it can feel like a flat, hard lump just under the skin surface.

What can contribute

The exact cause is often unknown. It can be part of the body's natural healing process after an injury or surgery, or it can be associated with some other medical conditions.

How it is usually checked

Your provider will check the area with a physical exam. To be sure what it is, they may suggest a biopsy. This is a simple procedure where a small piece of skin is removed and looked at with a microscope.

Does this change my long-term risk?

This condition is benign, which means it is not harmful. Finding dermal fibrosis does not change your long-term breast health risk.

Comfort and everyday care

  • Gently massaging the area with a lotion or moisturizer may help the skin feel softer.
  • If the skin feels tight, gentle stretching might offer some relief.
  • Wearing soft, non-irritating fabrics and well-fitting bras can help you stay comfortable.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

When to get it checked

  • You find a new patch of skin that feels thick, hard, or leathery.
  • The skin over the area changes color, becomes shiny, or looks puckered.
  • The area of thick skin seems to be getting larger.
  • The skin feels stuck to the tissue underneath it.
  • The area becomes painful or makes it harder to move your arm.

This is education, not a diagnosis. Nothing here replaces an exam, imaging, or a conversation with your own provider.