Hi . Is this a new growth? We're not medical experts, so I can't tell you for sure what it is, but I would insist on a biospy just to be safe. Remember that you pay for your doctor's services. It is more than okay to advocate for yourself and push for what you believe you need. If this doctor won't biopsy it, you might want to find someone new. Please keep us posted. Warmly, Lori (Team Member)