This is just a friendly reminder that you should be doing routine self checkups or having a dermatologist check you out.
15 days ago I spotted a change to a mole on the backside of my left shoulder and sent a picture to a friend who's a surgeon specializing in oncology.

What caught my eye was what resembled a cloud coming off the mole at 10 o'clock.
I went in two days later for a biopsy, results came back 7 days later on Tuesday am as positive melanoma, that evening this is what it looked like:
I was fortunate and caught it very early, stage T1a. The biospy measured it's depth at .4mm, after the fact my surgeon friend said it becomes a real problem past .75mm.
Melanoma can kill you fast if neglected. BE ALERT!
Here's a decent online resource:
http://www.skincancer.org/