Moles - Symptoms and causes - Mayo Clinic - Facial moles on humans
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Are concentrations of pigment-producing cells (melanocytes) in your skin. WebMD explains moles, freckles, skin tags, seborrheic keratoses, and lentigine. Congenital nevi occur in about one in people. exposed to the sun, such as the hands, arms, chest, neck, face, ears, legs, and back.