Haas, MD, FAAD, is a board-certified dermatologist with LCMC Health in Louisiana. In addition to his clinical practice, he ...

Age spots are harmless marks that can appear on the skin as a person ages. These spots can look similar to some types of skin cancer or precancerous growths. Both age spots and skin cancer are more ...

Skin cancer occurs when skin cells multiply abnormally, forming a tumor. Sun spots are due to an overproduction of a pigment called melanin in a small area of skin. Melanoma, the most severe type of ...

Dark spots, stubborn patches, uneven tone — hyperpigmentation shows up in many ways and for just as many reasons. If you’ve ever wondered why some areas of your skin seem to darken out of nowhere (or ...

That mysterious dark spot on your arm. The raised bump that appeared overnight. The cluster of tiny dots near your shoulder. When new marks appear on your skin, it’s natural to feel concerned about ...