Why would a potty trained dog start going inside?

My 4 year old healthy mutt has been potty trained since we got him 3 years ago. Recently, he has started pooping (and now peeing) in the house, in one particular area where we have been remodeling. We take him out and make sure he poops and pees before we leave, and we come home to a mess in that one area. It's not every single time, but there's no pattern to it either. It's never diarrhea, so it's not like a huge emergency, but we're also not gone for 15 hours and he just couldn't hold it. One day a week, he gets left home from 7am to 4:30pm and he never goes to the bathroom in the house; we left for three hours today and he pushed aside the barricade we use to keep him out of the remodeled area and used it as his personal lawn.

What's going on? Why would he suddenly start doing this?

Asked by Apollo on Jul 13th 2013 in Behavior & Training
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Tasha (in memory)

It's his house, and now there are these strangers with different smells coming in... he is just marking his territory. Dogs go by their noses, and you probsably have a worker who smells like an unfamiliar dog. After the remodel is complete his behavior should go back to normal. Use more of a physical deterrent to keep him out of the area in the meantime, and treat him when he does not go in that spot. ^_^

Tasha (in memory) answered on 7/14/13. Helpful? Yes/Helpful: No 0 Report this answer


Make sure you have cleaned your area well with enzyme-based cleaners so that there could be no smell left. I suspect any of you has stepped and left the scent there and that is the reason for his marking.

Member 1166037 answered on 7/18/13. Helpful? Yes/Helpful: No 0 Report this answer