Hi. i noticed a black spot under my left toe. it does not hurt or pain or irritate. but i'm afraid what that is. please help me. is this something bad?

Plantar wart: Most likely - especially if speckled and if skin lines go around it

Have it seen...: Giving advice on the nature of discolorations on the skin, especially when they are black, without actually seeing them, is a crap shoot at best. Most of the time, at least on the foot, there is nothing to worry about. To remove all doubt, simply have your doctor take a look or upload a picture to Healthtap.