"C'est horrible, il s'est coupé le pouce !"

Translation: It's horrible; he cut his thumb!

[sean.mullen]

Can't this also mean that he cut off his thumb?

[Sitesurf]

Yes, in this context where the "c'est horrible" exclamation seems to be a bit excessive for a simple cut.

[b_adger]

SItesurf, is there a way in French to distinguish between a simple cut and cutting it off?

[JonasTranc1]

I'm wondering the same thing.