Is my 6-month puppy's mounting and aggression due to sexual maturity?

Question

My 6 month old puppy is a lot bigger than my brothers 7 year old Bichon Frise and the Bichon seems to be scared of my dog but my dog does jump and may be too boisterous for him (he has a few health problems) but my dog also tries to mount/jump on his back and I was wondering if this is because he's reaching sexual maturity? His bark is very high pitched and he's only ever shown signs of aggression once towards the window cleaner. Once he's reached sexual maturity will this behaviour worsen? Pet's info: Dog | Mixed Breed Medium (23 - 60lb) | Male | unneutered | 6 months and 4 days old

Emily Luisana DVM · Accepted Answer

This is a good question. This may be unrelated to being intact, but in dogs that have early signs of aggression, I find that neutering ASAP can cause those signs to improve. Sometimes mounting behavior will continue (and even seen in females) but if there are other signs of aggression I would neuter immediately and also consider calling a positive reinforcement based trainer. I hope this helps!

Is my 6-month puppy's mounting and aggression due to sexual maturity?

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