Mine does this too, but not very often. She is 2 1/2 years old, and sometimes when she's sleeping really hard on our lap in the evening, this will happen. She's VERY well potty trained & has a doggy door, so I know it isn't behavioral. She checked out fine at the vet as well, so not sure what the problem is.
The last time I had this problem with my maltese (12 yrs old), she had a very uncommon bacterial infection. Funny thing was Bayleigh had the same thing happen shortly after and she had no infection...go figure.
I hope you find out what's causing this. |