Bald Spot from Dirty Clippers?

Hey doc. im an 18 year old male. I cut my hair almost once a week to were its bald but not skin bald, I use hair clippers and about two months ago i started getting a bald spot that grew from a pea size to a quarter size and its starting to really worry me.I went to a clinic and asked a doctor and she told me that it will grow back and she dont know what it came from but, I wasnt sure if she was telling me the truth or just trying to get me out of the way. I dont know what its from im thinking its from the clippers because they were kind of dirty, and then rescently I got another one but alot smaller, is it from stress or from the dirty clippers? thank u doc.

Without seeing you and examining you myself, I really can’t render an opinion on your particular case. When bald spots appear, this could signal many dermatological conditions such as alopecia areata, fungal diseases of the scalp (infection), etc.