I get checked more than a few times per year as I do not trust most Dermatologists. I have had blond hair most of my life and very fair skin. Last November I was diagnosed with Melanoma cancer on my right tricep after a biopsy was performed. Another Dermatologist earlier just froze it and said just to watch it. After the Melanoma diagnosis, I had surgery on the cancer area and I was shocked at the size of the scar, almost three inches. My surgeon told me he had to remove part of my tricep muscle to get down to all the cancer area. So yes, it is a very good idea to see a good Dermatologist regularly.