about a week ago i noticed there was a large slice out of my cats lip. it was clean with no blood or sign of infection so i thought i'd leave it a few days before i went to the vets . he is in no pain and it doesn't seem to bother him at all, i presumed it was from a can or something similar. are there any other possibilities i should be looking out for and is a vets trip necessary as a precaution as that would be another 50 quid. but if he needs it he'll have to go.