Quick question.

if someone has a lump or growth cut off any part of their body, whether the doctors thought it was something dangerous or just removed it as it was irritating, do they have to check it for anything malignant anyway?.

I ask this because when I went to the hospital on Wednesday, the doctor who looked at my tongue and said he thought it was nothing to worry about, said that if it was irritating me he would make an appoinment to get it cut off. This is a small lump/spot on the swelling. So I'm wondering if I do get the small spot/lump thing cut off, if they have to check it just incase it does turn out to be anything dangerous, or if they just would normally just dispose of it straight away?.