Just got back from the doctors and he has sent an urgent 2 week referral to be seen by dermatologists as he thinks it's possible o have subungual melanoma, my toe nail is black down one side and has been for a few months now and showing no signs of growing out. He said I will be seen in 2 weeks regardless of Xmas and new year. I've no idea what to expect, worst time of year to be told something like that.