Prevention of skin moles includes:
- Wear clothing that blocks the sun's rays.
- Use sunscreen if you are out in the sun for more than 30 minutes.
- Use a sunscreen that protects against UVA.
- Stay out of the sun between 10 AM and 4 PM, when the sun's rays are strongest.
- Perform regular skin self-examinations:
- Skin areas that are often exposed to the sun are at highest risk for skin cancer.
- See your doctor for changes in color, size, or overall appearance of skin moles.
- See your doctor for new or unusual skin moles.
- Learn the American Cancer Society's ABCD rules for skin lesions:
- A: asymmetry: one-half of the mole does not match the other half.
- B: border irregularity: the edges of the mole are ragged or notched.
- C: color: the color of the mole is not the same all over. There may be shades of tan, brown, or black, and sometimes patches of red, blue, or white.
- D: diameter: the mole is wider than about 1/4 inch
Continue to Mole Outlook
- Muhn CY, From L, Glied M. Detection of artificial changes in mole size by skin self-examination. J Am Acad Dermatol. 2000 May;42(5 Pt 1):754-9. 
- Seidenari S, Pellacani G, Grana C. Colors in atypical nevi: a computer description reproducing clinical assessment. Skin Res Technol. 2005 Feb;11(1):36-41. 
- Tilliss TS. Examination of skin moles. Am J Dent. 1997 Aug;10(4):164-5. 
- Weinstock MA, Nguyen FQ, Martin RA. Enhancing skin self-examination with imaging: evaluation of a mole-mapping program. J Cutan Med Surg. 2004 Jan-Feb;8(1):1-5.