Join Date: Aug 2006
Location: San Francisco Bay Area
Submit Photo: 5
Photo Submissions 19 Times in 13 Posts
Yes, I just had a male neutered that was almost two years old (20 months). I think the recovery probably took a little longer than it would for a young puppy, but after wearing a cone a few days, he bounced right back.
As for marking, be firm and let him know that is not allowed. I wouldn't even allow my males to mark when we walk around the neighborhood. They had two bushes that they could mark in our front yard, but that was it. I detest dogs urinating and marking at every whim.