After a biopsy, the lesion was found to be a superficial cancer not unlike basal cell, the most common form of benign skin ... there's blue or black or red. And diameter: if it's a large mole ...

And some non cancerous (benign) moles or abnormal patches of skin can be itchy. So having some of these changes on their own doesn't mean you definitely have melanoma. But you should still get it ...

Abnormal looking moles are quite common but melanoma is quite rare in comparison. It can be hard for GPs to decide who may have a melanoma skin cancer, and who may have a non cancerous (benign) change ...