Moles also known as “nevi” are pigmented lesions which appear as brown or skin colored spots on skin. Almost every adult has a few moles. It is recommended to visit a dermatologist on a routine basis to ensure your moles look clinically normal. Malignant melanomas may occur in pre-existing or acquired moles. Therefore, if you notice any changing, growing or bleeding moles it is important to see a Dermatologist for further evaluation.