Neoplasms on a skin - what is it?

[Anonymously]

Hello!
About 5 years ago on a leg or foot (anticnemion) there was a neoplasm - red color, about 3 mm in diameter, camber, the round form. From it or her hair till now grows.
Does not hurt, does not disturb.
And recently near to her has started to appear same - the same diameter while she is slightly more dark (rozovee) than a skin.
What is it can be?

[Filix]

It it is necessary to look - probably, and something serious. Necessarily seem to the dermatologist on a residence.