Are epidermal inclusion cysts cancerous?

Are epidermal inclusion cysts cancerous?

Epidermal inclusion cysts are common and typically harmless, but rarely can become malignant (cancerous). Approximately 1% have been shown to transform into malignancy.

An epidermal inclusion cyst may concerning if it has any of the following characteristics:

• Signs of infection, including pain, redness, swelling and/or drainage.
• A fast rate of growth.
• A diameter larger than five centimeters.

It is difficult for the layman to tell whether a lump/growth is a cyst or something else. Please see your healthcare provider to ensure a correct diagnosis.