Spaying/neutering at 8-10weeks is too early!!!there is a vet near here that takes care of Humane Soc. And SOS pets, that fixes them really young because they heal quicker. My vet and others that I talked to said the kittens urinary tracts need to mature enough or they will have kidney problems and UTIs when they are bigger. A study was done with lions and the males that were fixed too soon never developed a mane because of the lack of hormones. IMHO before 3-4months is too early. Talk to a vet you trust and go by their recommendation.