Ways to recognize a "bad" mole?

Mole (nevus) - accumulations of pigmented cells, can be congenital and acquired. Moles themselves are considered safe, but they can degenerate into a malignant one. Unusual moles that may indicate melanoma. Melanoma symptoms: Asymmetry of a mole, when one half is not like the other. Such a mole should alert: it is atypical and can become malignant; Edge unevenness. The borders of moles are uneven, serrated or jagged. Color change. It is dangerous if the mole is unevenly colored, with shades of brown, pink or red. Diameter change. We are wary if the size of the mole is more than 6 mm and gradually increases.