After a dog is neutered, it takes a full 30 days for the hormones to cycle out of his system. Give him a few weeks and he should stop this behavior. If he doesn't stop after 30 days, then scold him whenever he does hump something.
I got Hobbs neutered at 5.5 months...he humped a little right after the surgery, but after a couple of weeks, he has never humped anything again. |