How old is he? I brought my 12 year old cat in to get something removed from her lip last year (poor thing tried to climb back up my shirt when I started to send her back) and even though I was so sure with her age it would be something cancerous, it turned out to be benign. It's always better to know no matter what, though.Hopefully. He got 6 things removed and one of them the vet is worried could potentially be cancer