We’re often told to look out for changing moles when it comes to skin cancer, but it’s not always a brown spot you need to be aware of. A dermatologist has gone viral on TikTok after showing one rare symptom that could be melanoma, the most serious form of skin cancer. Rare skin cancer symptom“I’m about to show a picture of melanoma that would shock people because most would not recognise it as cancer,” Mark Strom said. He explained that most people think of skin cancer as a new mole on the skin or a changing black or brown spot, but there is another type which has no pigment. The dermatologis…