How can I tell if my mole isn't normal?

The main thing to look for is any change in a mole that you have or the appearance of a new mole. Most normal moles appear by age 30. Any moles that appear after age 30 should be watched carefully and brought to the attention of your family doctor.

Signs of skin cancer ABCDE rule :

• A for asymmetry: A mole that, when divided in half, doesn't look the same on both sides
  
  
• B for border: A mole with edges that are blurry or jagged
  
  
• C for color: Changes in the color of a mole, including darkening, spread of color, loss of color, or the appearance of multiple colors such as blue, red, white, pink, purple or gray
  
  
• D for diameter: A mole larger than 1/4 inch in diameter
  
  
• E for elevation: A mole that is raised above the skin and has an uneven surface

Other signs include :

• A mole that bleeds
• A fast-growing mole
• A scaly or crusted growth on the skin
• A sore that won't heal
• A mole that itches