I have had several male ogs, never a Yorkie though. I never had a problem with marking, and all were neutered between 12 and 15 months.
Maybe due to the small bladder size, they just have a harder time holding it. We have to let the little girl out every 2 hours. if not, she will find a spot on a nice WHite Wool rug....The big guy never has had a problem after he was trained, and that took all of 3 days. |