It can be alarming to see a new spot appear on your skin, especially if it's rapidly growing. Here's what experts need you to know.

Skin cancer is the most common form of cancer worldwide, and an estimated 1 in 5 Americans develop it by age 70, the Skin ...

A breakthrough has made photodynamic therapy safer and more effective. Scientists have developed new light-sensitive chemicals that could significantly enhance the treatment of aggressive cancers ...