Skin Cancer (Nonmelanoma Skin Cancer or Keratinocyte Cancer)

  • Medical Author:
    Gary W. Cole, MD, FAAD

    Dr. Cole is board certified in dermatology. He obtained his BA degree in bacteriology, his MA degree in microbiology, and his MD at the University of California, Los Angeles. He trained in dermatology at the University of Oregon, where he completed his residency.

  • Medical Editor: John P. Cunha, DO, FACOEP
    John P. Cunha, DO, FACOEP

    John P. Cunha, DO, FACOEP

    John P. Cunha, DO, is a U.S. board-certified Emergency Medicine Physician. Dr. Cunha's educational background includes a BS in Biology from Rutgers, the State University of New Jersey, and a DO from the Kansas City University of Medicine and Biosciences in Kansas City, MO. He completed residency training in Emergency Medicine at Newark Beth Israel Medical Center in Newark, New Jersey.

Quick GuideSkin Cancer Symptoms, Types, Images

Skin Cancer Symptoms, Types, Images

Sunscreen use and vitamin D

A major source of vitamin D comes from sunlight exposure, which leads to the production of the vitamin in the skin. Some argue sunscreens block out so much of the sun's rays that inadequate vitamin D synthesis results. In fact, very few people actually apply sunscreen to every inch of their exposed skin, so vitamin D synthesis does occur. There is no reason not to use sunscreens because of a fear of low vitamin D. If there is a concern, vitamin D can be obtained by eating leafy vegetables or taking an oral multivitamin supplement.


American Society of Clinical Oncology. "Skin Cancer (Non-Melanoma): Symptoms and Signs." June 2015.

Kauvar, Arielle N.B., et al. "Consensus for Nonmelanoma Skin Cancer Treatment: Basal Cell Carcinoma, Including a Cost Analysis of Treatment Methods." Dermatol Surg 41 (2015): 550-571.

Rogers, Howard W., Martin A. Weinstock, Steven R. Feldman, and Brett M. ColdIron. "Incidence Estimate of Nonmelanoma Skin Cancer (Keratinocyte Carcinomas) in the US Population, 2012." JAMA Dermatol 151.10 (2015): 1081-1086.

Skin Cancer Foundation. "Actinic Keratoses (AK)." 2016.

Skin Cancer Foundation. "Basal Cell Carcinoma Treatment Options." 2016.

Skin Cancer Foundation. "Do You Know Your ABCDEs?" 2016.

Medically Reviewed by a Doctor on 11/30/2016

Subscribe to MedicineNet's Cancer Report Newsletter

By clicking Submit, I agree to the MedicineNet's Terms & Conditions & Privacy Policy and understand that I may opt out of MedicineNet's subscriptions at any time.

Health Solutions From Our Sponsors