My wife recently told me she noticed a mole on my back that looked strange. Now I’m worried. What should I be looking for?
Paul M., Terra Linda
Take a few minutes to watch the Skin Cancer Self Check Video here on our website. A good rule of thumb is to think of the letters ABCDE:
- A is for asymmetrical shape.Look for moles with irregular shapes, such as two very different-looking halves.
- B is for irregular border.Look for moles with irregular, notched or scalloped borders — characteristics of melanomas.
- C is for changes in color.Look for growths that have many colors or an uneven distribution of color.
- D is for diameter.Look for new growth in a mole larger than 1/4 inch (about 6 millimeters).
- E is for evolving.Look for changes over time, such as a mole that grows in size or that changes color or shape. Moles may also evolve to develop new signs and symptoms, such as new itchiness or bleeding.