What is a mole?
Mole is a dark spot or irregularity in the skin. It can be a birthmark or abnormal formation of blood vessels (hemangiomas) or Keratoses (benign or precancerous spots, which appear after about age 30 years)
What causes moles?
Some people are born with moles. Other moles appear later in life.
Sun exposure seems to play a role in the development of moles and may even play a role in the development of atypical, or dysplastic, moles.
The role of heredity cannot be overemphasized. Many families have a type of mole known as dysplastic (atypical), which can be associated with a higher frequency of melanoma.
Moles can be removed for aesthetic or medical reasons, especially if there are signs of melanoma. Mole removal uses one of three methods:
A) Shave excision (cutting it off with a sharp scalpel blade);
B) Punch excision (a small apparatus is placed over the mole and “twists” it out);
C) Surgical excision for larger moles.
Although laser excision has been tried for moles, it is not the method of choice for most deep moles because the laser light doesn’t penetrate deeply enough, and there is no tissue remaining to examine pathologically. Typically, the dermatologist (a skin specialist) may choose excision with or without stitches, depending on the depth of the mole and the type of cosmetic outcome desired.
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