How to spot cancerous moles
Cancerous Moles: Asymmetry
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Asymmetry: one half is unlike the other half
The mole on the top is basically an oval that is equal on all sides. The one on the bottom has pigmentation outside the defined mole giving it an asymmetrical shape, a warning sign it may be a cancerous mole.
Cancerous Moles: Border
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Border: irregular, scalloped, or poorly defined
The mole on the top has a clearly defined edge, which is a good sign it's benign. The one on the bottom is irregularly shaped and blotchy. The color fades into the skin in some spots indicating you may have cancerous moles.
Cancerous Moles: Color
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Color: varied from one area to another; shades of tan, brown, and black; sometimes white, red, or blue
The mole on the top is an even tan throughout, whereas the one on the bottom is splotchy and unevenly colored. The dark patches and variation of color with in the mole reveal the potential that you may have cancerous moles.
Cancerous Moles: Diameter
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Diameter: melanomas are usually larger than the size of a pencil eraser when diagnosed, but they can be smaller
The small mole on the top is nothing to worry about. When a mole is large, like the one on the bottom, it should be looked at by a doctor immediately. It could be a sign of cancerous moles.
Cancerous Moles: Evolving
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Evolving: a mole or skin lesion that looks different from the rest of the spots on your body or changes shape, size, or color
The image on the top has many moles that are similar in size and color. The image on the bottom also has several moles but the larger, darker one indicates concern for cancerous moles.