2. Know Your ABCDEs: A&B
‘A’ is for asymmetry.
Asymmetry means one half of a mole does not match the other half. Normal moles are symmetrical. When checking your moles or freckles, draw an imaginary line through the middle and compare the two halves. If they do not look the same on both sides, have it checked by a dermatologist.
‘B’ is for border
If the border or edges of the mole are ragged, blurred, or irregular, have it checked by a dermatologist. Melanoma lesions often have uneven borders.
