Hi, 

I'm looking my right arm and on the bicep, I have this pimple, It looks a white head. OK so it been on my arm for a few months now, I really don't know how long. I had two one smaller than the other. The smaller one now, you can barely even see.

I'll post a picture. It doesn't hurt at all in the slightest. I did start Jiu jitsu in May, and I think this 'pimple' appeared in August or July. Could it be staph? 

I have no past medical history of anything. But I am online and reading that it might be some type of cancer. Melanoma or basal cell carcinoma or squamous cell carcinoma? 

THIS is a close of it. It does not look that big in person. 

Thanks, 
Jb 

I will be going to the dermatologist soon to see what it is, but am just getting worried. Don't know how long an appointment wait will be.