What is the main difference between a mole and melanoma?

The main difference between a mole and melanoma lies in the characteristics associated with their appearance. Moles, known medically as nevi, are typically uniform in color, often brown or black, and they tend to have a regular shape such as round or oval. This uniformity indicates that they are generally benign and not a cause for concern.

On the other hand, melanoma is a type of skin cancer that can develop from a mole or appear as a new lesion. It is known for its irregularities in color, size, and shape, often exhibiting multiple colors or areas of shading. Unlike moles, melanomas can evolve in appearance as they grow, becoming asymmetrical and showing variations in pigmentation, which signals that they are malignant and requires immediate medical attention.

The other options, while they might describe certain aspects of moles or melanoma, do not accurately capture the primary distinguishing feature between the two. Size can vary for both moles and melanomas, and while melanomas can be raised, they aren't always so. Pain is not a defining characteristic of melanoma either, as it can be asymptomatic. Understanding these distinctions is crucial for recognizing skin changes that could indicate a more serious condition.