Hi

Just looking for some advice if anyone can help please?

I have a smalk greyish brown bump appeared on the back of my hand a few years ago.  I had gp check it a couple of times as it seemed to grow slightly but is still under 5mm.  However a couplr of days ago it became itchy and inflamed with a little (1mm??) Pearly dot in irthe.  The next morning I got up still inflamed slightly but the pearly dot turned to red and if I gently rub my nail over it it feels like it will cone off.  I have a gp appointment booked but wondered all changes like this are definitely cancerous?

Thanks