Rolan Tripp, DVM
Canine Urine Marking
Most common in older dogs, usually intact males. Any intact male
that smells urine from a bitch in heat will likely urine mark that
spot instinctively. Otherwise, it is claiming status or territory.
Females sometimes mark, but less often, and usually only when in
heat, or outside on a familiar walk.
Both males and females usually lift their leg to mark,
marking a vertical surface.
This brings the urine closer to nose
height of the next passing dog.
Marking is usually a small urine quantity, i.e. more frequent small
Urine is being used as a marker instead of voiding the entire