By: Jean Liu Urquhart, M.D. The month of May means warmer temperatures and more exposure to the sun, which makes it the ideal time to raise awareness of melanoma, the most serious and deadliest form of skin cancer. Melanoma is a skin cancer that can appear on the skin at any time, suddenly without warning or can arise in an existing mole. Signs and symptoms include a changing mole that shows asymmetry, an irregular border, or various colors. While melanoma is typically found on [...]