Why is my neutered male dog humping my older unspayed female?

Question

Dahlia is almost 9 with a waiver not to spay because she has a heart murmur. Midnight is neutered by rescue. No other females in the area. What and why is he jumping in her. Pet's info: Dog | Pit Bull Terrier | Female | unspayed | 8 years and 2 months old | 95 lbs

Jenna Beyer, DVM, MBA, cVMA · Accepted Answer

Then it sounds like he is just made that way. He may be using this behavior to display dominance. Tell him no firmly and redirect his attention to another fun activity or play thing. It is between you and your vet whether surgery is in Dahlia's best interest or not. In my opinion, it is worth considering now since a heart murmur does not mean she can't develop pyometra. The cure for pyometra is to be spayed, but when they are critically ill with a pyometra, they are at an increased risk of surgical or anesthetic complications. These risks would be amplified in a dog with a heart murmur. Your vet may refer Dahlia to a specialist who can provide more comprehensive monitoring during surgery. Unless my patients are in congestive heart failure, I do not hesitate to spay them with a heart murmur. My own dog has a congenital heart murmur and has undergone several anesthetic procedures during her life without complication. But like I said, your vet knows Dahlia much better than I do!

Why is my neutered male dog humping my older unspayed female?

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