Abstract
Abstract Excessive licking of surfaces (ELS) refers to licking of objects and surfaces in excess of duration, frequency, or intensity as compared with that required for exploration. This behavior is a nonspecific sign and may be the consequence of several conditions. The objectives of our prospective clinical study were to characterize ELS behavior in dogs and to examine the extent to which it may be a sign of an underlying gastrointestinal (GI) pathology as opposed to a primarily behavioral concern. Nineteen dogs presented with ELS were included in the licking group and 10 healthy dogs were assigned to a control group. Behavioral, physical, and neurological examinations were performed before a complete evaluation of the GI system. Treatment was recommended on the basis of diagnostic findings. Following initialization of treatment, dogs were then monitored for 90 days during which their licking behavior was recorded. GI abnormalities were identified in 14 of 19 dogs in the licking group. These abnormalities included eosinophilic and/or lymphoplasmacytic infiltration of the GI tract, delayed gastric emptying, irritable bowel syndrome, chronic pancreatitis, gastric foreign body, and giardiasis. Significant improvement in both frequency and duration of the basal ELS behavior was observed in 10 of 17 dogs (59%). Resolution of ELS occurred in 9 of 17 dogs (53%). Based on video analysis, it was found that ELS dogs were not significantly more anxious than the dogs in control group in the veterinary context. In conclusion, GI disorders should be considered in the differential diagnosis of canine ELS.
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