Hi My Frrend Told Me Something Today That I Should

hi my frrend told me something today that I should see a doctor he say if u have over 50 u could have skin cancer is he right because I have 2 or3 big ones dark brown a few light brown ones that don't pertrude out of sking and more then a few that are in the middelrange of the first 2in first 2 week got a few that are red ones they look like uther ones but red dots if u have the answer I am looking for I thank u and am wheighting hapeley