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Nonmelanoma skin cancer

Nonmelanoma skin cancer usually appears as a change in the skin, such as a growth, an irritation or sore that does not heal, or a change in a wart or mole. Overexposure to the sun's ultraviolet (UV) rays causes most nonmelanoma skin cancer.

Basal cell carcinoma and squamous cell carcinoma are the most common types of nonmelanoma skin cancer.

  • Basal cell skin cancer accounts for most skin cancers. It is a slow-growing cancer that seldom spreads to other parts of the body.
  • Squamous cell skin cancer is less common. It also rarely spreads, but it does so more often than basal cell carcinoma.

It is important that nonmelanoma skin cancers be found early because treatment is very effective in the early stages. Nonmelanoma skin cancer is treated by removing the cancer with either surgery (excision) or freezing (cryotherapy). It rarely spreads (metastasizes) to other parts of the body.

Author Jeannette Curtis
Author Caroline Rea, RN, BS, MS
Editor Kathleen M. Ariss, MS
Editor Susan Van Houten, RN, BSN, MBA
Associate Editor Tracy Landauer
Associate Editor Pat Truman
Primary Medical Reviewer Patrice Burgess, MD
- Family Medicine
Primary Medical Reviewer Adam Husney, MD
- Family Medicine
Primary Medical Reviewer Kathleen Romito, MD
- Family Medicine
Last Updated May 25, 2007

WebMD Medical Reference from Healthwise

Last Updated: May 25, 2007
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.