It is normal for dogs to lick themselves, but when licking becomes excessive it may be a sign of a more serious problem. Excessive licking is often a sign of emotional problems, or there may be an underlying physical cause for the dog's behavior.
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Identification
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Licking is the way dogs clean themselves, so some licking is normal. If the dog begins to lick excessively, then the underlying cause of the problem should be treated. Dogs can develop a condition called lick granulomas, which results from licking themselves too much. This can lead to painful infections that are difficult to heal.
Fleas
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One of the most common causes of excessive licking is the presence of fleas. Flea bites can cause extreme itching, and the licking is a way to soothe the itch. If your dog begins to lick himself more than usual, check him for fleas.
Allergies
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Dogs that are exposed to allergens may begin to lick excessively. Watch for an increase in licking behavior after exposure to allergens such as pollen, food, smoke, shampoo or antibiotics.
Emotional Problems
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Boredom, anxiety and stress are all reasons that dogs may begin to lick more than usual. This behavior can become obsessive over time, and can lead to baldness and lick granulomas.
Considerations
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If your dog licks excessively, consider taking a trip to the veterinarian. Often, there is an underlying physical cause that may require medical attention. These conditions may include seizures, liver failure, obsessive-compulsive disorders, Cushing's disease and neurological diseases.
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