I think these Spay/Neuter PSAs...

[dainerra]

Matthew, I prefer to wait as long as possible, but that just doesn't work with the average owner. Besides, if you tell them 6 months, they'll put it off until 8 months +. Telling them to do it at 4 will hopefully balance out to having the operation before the dog gets pregnant!

 

[redhen]

I think 4 months is too young to fix a dog..

 

[Stacykins]

Better done early than never!