As most of you know I have 3 cats, my oldest will be 16 and the youngest is 1. I am having problems with my 16 year old, he has a cyst on the top of his head. I have taken him to the vet a number of times and she said to keep bringing him back to get it drained, only because I don't want to put him under for surgery because of his age. But when I get it drained it fills up again the same day. So today I brought him to a wonderful vet (not our usual one) They have special things they do with older animals ( a very high tech.