Spencer Kroll, MD, has a book on his shelf that he used in medical school. In it, there’s information about a once-common practice for doctors. When they’d shake the patient’s hand upon entering the ...

Vitamin B12 deficiency often presents as changes in the skin such as paleness and hyperpigmentation, so what are its causes ...

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 ...

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 ...