I recommend reading the following links pay close attention to the neutering of immature dogs. 6 months and 1 year are immature dogs.
http://www.naiaonline.org/pdfs/LongTermHealthEffectsOfSpayNeuterInDogs.pdf
http://trinitylabstexas.com/what-age-is-best-to-have-my-dog-spayedneutered/
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i waited to a little over a year old to do toby.

vets dont like to go that long as the dog will have learned behavior and a year in their eyes is too long .

you should have been there when i said,LYME SHOT WILL GIVE YOUR DOG ARTHRITIS.

he almost threw me out BUT i also read that too that it will hurt your dog.but i had him give it.

yet, everyone that has not given their dogs a LYME shot locally has it and many are in bad shape,for sure.

boy, its hard to decide what is right,one says 6 months, 1 year.

1 says , lyme shot, other says NO.