We will soon be neutering our Male V (breeder contract and also need him to be able to be in certain boarding situations that won’t allow him). He’s 18 months. Quite suddenly over the past month he’s displaying a LOT of leash aggression- not toward people but toward other dogs, the usual aggressive lunging, with hair on end, “I want to rip your throat out” behavior. Off leash he is a primarily submissive and has great dog social skills. We are patiently training the leash aggression issue as I am fully aware that behavior issues require training and that neutering is not a fix. However, I can’t help but wonder if anyone has noticed a change in their males regarding this issue after neuter. Did anyone notice their dogs become less reactionary? Behavior issues are trainable, but testosterone is testosterone after all.