Dogs lick each other's private areas primarily as a normal social behavior, a way of gathering information and greeting each other. It's essentially a polite "getting-to-know-you" process involving scent and grooming.
Understanding the Behavior
Here's a breakdown of why this behavior occurs:
- Scent Identification: A dog's sense of smell is vastly superior to a human's. The anal glands and urine contain pheromones and other scent markers that provide detailed information about another dog's identity, sex, reproductive status, diet, and even emotional state. Licking allows them to get a closer, more concentrated "sniff."
- Social Grooming: Grooming is a common bonding activity for dogs. Licking can be a way to reinforce social bonds and show affection, even if it seems strange to us.
- Instinctual Behavior: This behavior is rooted in canine instinct and is a natural part of their communication and social interaction.
- Information Gathering: Beyond simple identification, the scents can tell a dog if another dog is sick, pregnant, or receptive to mating.
Is it normal and when to worry?
This behavior is considered normal, particularly among dogs who are well-acquainted. However, excessive licking could indicate an underlying issue:
- Medical Problems: If a dog is excessively licking another dog's privates (or their own), it could indicate a urinary tract infection, skin irritation, or other medical condition.
- Behavioral Issues: Boredom or anxiety can sometimes lead to excessive licking.
- Gland Issues: If the dog being licked is scooting or showing discomfort, it could be a sign of impacted anal glands.
If you suspect a medical or behavioral problem, consult a veterinarian. Otherwise, the occasional polite lick is generally nothing to worry about.
