I took my 7 month old cat Fetty to be neutered. Since he was nervous with a dog in the vets kennel, they sent the wormer home with me to give him. But I am wondering if it is really necessary. He is an inside cat, never had a mouse and only goes outside in his cat house which is 3 feet above the ground and fenced in. His feet have never touched the outside ground. I don't think he had fleas as I used a flea comb on him and his sister and mother this summer, and did not find any dirt or fleas. Any info on this would help. The wormer is sitting here and I really don't know if I should give it to him. Sometimes I think the vet does these things to bump up the bill. Thanks