A sudden or continuous
change in the appearance of a mole is a sign that you should see
your doctor. The ABCD rule can help you remember the symptoms of
One half is different than the other half.
for Border Irregularity
The edges are notched, uneven, or blurred.
The color is uneven. Shades of brown, tan,
and black are present.
Diameter is greater than 6 millimeters.
Other Warning Signs:
• The appearance of a new bump or nodule
• Color spreads into surrounding skin
• redness or swelling beyond the mole
• scaly appearance