I have treated over 15 melanomas and pre-melanomas this month. I typically average 2 to 4 melanomas a month. What is going on? Melanoma is the leading cause of skin cancer deaths worldwide. this is a very dangerous cancer that can affect everyone from someone in their 20s all the way up to someone in their 90s. By doing routine skin checks with a dermatologist, we are able to pick up on these early and possibly prevent a melanoma from developing.