tomorrow morning, Friday Feb. 18th, my Shih Tzu puppy goes in to get nudered. my wifes worried that it will change his personality. does having them fixed at such a young age change them? the vet lady said only thing he will do is never hike his leg to go pee pee, he'll just squat. also he has a bump on his neck that my wife swears was there when he got home from the vet last, which was three weeks ago for his third set of shots. i'll ask her tomorrow.