This another great article on mole removal that you should check out
What is that dark spot on my skin - is it a birthmark, a wart, or something else? Does it actually matter? - It does matter, especially if it is a mole, and it seems to grow or spread over time.
In that case, removing mole from your skin is a priority, preventing it from becoming pre-cancerous.
Both moles and warts can appear as a raised area of the skin hence there is often confusion between the two.