Impetigo in Dogs: Causes, Symptoms, and Treatment

Canine impetigo frequently occurs in young prepubescent dogs living in unsanitary conditions. It manifests as a non-follicular subcorneal pustular ailment primarily triggered by coagulase-positive staphylococci bacteria. In contrast, bullous impetigo is a distinct condition observed in older dogs grappling with debilitating conditions like hypothyroidism or hyperadrenocorticism. Although generally not life-threatening, impetigo in dogs can be distressing and unpleasant for your beloved pet. In this article, we will delve into the causes, symptoms, and available treatment options for canine impetigo.

What is Impetigo in Dogs?

Impetigo in dogs is a skin condition that primarily affects puppies and young dogs. It is characterized by the development of pustules (small, pus-filled blisters) on the skin, which can be itchy and uncomfortable for the affected animal. Impetigo is typically a mild and self-limiting condition, but it can be bothersome for dogs and their owners.

What Are the Symptoms of Impetigo in Dogs?

Identifying impetigo in your dog is crucial for timely treatment. The condition typically presents with the following symptoms:

• Pimple-like Blisters: Impetigo usually begins as small, fluid-filled blisters that may burst and form honey-colored crusts on the skin. These blisters are most commonly found on the abdomen, groin, and inner thighs.
• Itching and Discomfort: Dogs with impetigo may scratch or lick the affected areas due to the discomfort caused by the blisters. This can lead to further skin irritation and the spread of the infection.
• Hair Loss: In some cases, impetigo can cause localized hair loss in the affected areas.
• Mild Fever: Although not always present, some dogs with impetigo may exhibit mild fever or lethargy.

Early Stage Impetigo in Dogs

In the early stages of impetigo, dogs generally do not show signs of illness such as fever or lethargy. It is primarily a skin condition.

Impetigo typically starts with small, red, and pimple-like lesions on the skin. These lesions can be itchy and may develop into pustules (blisters filled with pus). They are commonly found on the abdomen, groin, and inner thighs of the dog.

Why Do Dogs Get Impetigo?

Impetigo in dogs is primarily caused by bacteria, with Staphylococcus intermedius being the most common culprit. The bacteria can enter the skin through small breaks or abrasions, often resulting from scratching or itching. Young puppies are more susceptible to impetigo because their immune systems are not fully developed, making them less capable of fighting off bacterial infections.

Some of the common causes are:

• Fleas
• Food allergy
• Insect bite
• Mange
• Urine scalding
• Compromised immune system
• Weakened endocrine system

Can You Get Impetigo from a Dog?

Yes, humans can get impetigo from a dog. Dogs can carry various bacteria on their skin, and occasionally these bacteria can cause skin infections in humans if there is direct contact between the dog's infected area and the human's skin, or if there are breaks in the skin that allow the bacteria to enter.

Is Impetigo Contagious in Dogs?

Yes, impetigo can be contagious in dogs. Impetigo is a bacterial skin infection that can affect dogs, and it is usually caused by the bacteria Staphylococcus intermedius. Just like in humans, the bacteria can be spread from one dog to another through close contact or by sharing contaminated items such as bedding, grooming tools, or toys.

Impetigo in dogs typically manifests as pustules or blisters on the skin, which can be itchy and uncomfortable for the affected animal. The condition is more commonly seen in puppies and young dogs, as their immune systems are still developing and may not be as effective at fighting off infections.

How to Treat Impetigo in Dogs?

Here are some common steps that may be involved in treating impetigo in dogs:

Antibacterial Medication

Impetigo is typically caused by Staphylococcus bacteria. Your veterinarian may prescribe antibiotics, such as cephalexin or amoxicillin, to treat the bacterial infection. 

Topical Antibacterial Products

You should clean the affected area with a mild, non-irritating soap and warm water. Gently pat the area dry with a clean towel. Avoid harsh or scented soaps that can irritate the skin further. And then you can use antibacterial shampoos, sprays, or ointments to use. These can help cleanse and disinfect the affected skin.

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Prevent Self-Trauma

Impetigo can be itchy and uncomfortable for dogs. Prevent your dog from licking or scratching the affected area by using an Elizabethan collar (cone collar).

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It's worth noting that keeping a close eye on your dog's skin during the treatment. If you don't see improvement within a week or if the condition worsens, contact your veterinarian for further guidance.

How to Prevent Impetigo in Dogs?

Impetigo in dogs is a bacterial skin infection that can be uncomfortable and contagious. Preventing impetigo in dogs involves maintaining good hygiene, addressing any underlying health issues, and taking preventive measures to reduce the risk of infection. Here are some steps you can take to prevent impetigo in your dog:

Regular Bathing

Bathing your dog regularly with a mild, dog-specific shampoo can help keep their skin clean and reduce the chances of bacterial infections. However, avoid over-bathing, as it can dry out their skin. Many dogs are usually bathed once every 2-3 months, and puppies are usually bathed once every 3-4 months.

Keep Skin Dry

Ensure your dog's skin is thoroughly dried after bathing, swimming, or exposure to moisture. Bacteria thrive in damp conditions.

Healthy Diet

A balanced and nutritious diet can help maintain your dog's overall health, which in turn can help their immune system fight off infections. 

Ensure that the dog food provides a balanced mix of proteins, fats, carbohydrates, vitamins, and minerals. Always provide clean, fresh water for your dog. Proper hydration is essential for their overall health.

Maintain a Clean Living Environment

Regularly clean your dog's living area, including their bedding, toys, and food bowls. This helps prevent the buildup of bacteria that can lead to infections.

Avoid Excessive Scratching

Discourage your dog from excessive scratching, as this can cause skin irritation and potentially lead to impetigo. If your dog is scratching a lot, consult with your vet to identify the underlying cause.

Isolate Infected Dogs

If you have multiple dogs and one develops impetigo, isolate the infected dog until they have fully recovered to prevent the spread of the infection to others.

Prevent Fleas and Ticks

Regularly use flea and tick preventatives as recommended by your veterinarian, as these parasites can irritate your dog's skin and create openings for bacteria.

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FAQs

Does impetigo in puppies go away on its own?

Mild cases of impetigo in puppies may resolve on their own over time as the puppy's immune system matures. This may take several weeks. However, If the impetigo is causing discomfort, spreading rapidly, or becoming more severe, it's advisable to seek veterinary care. A veterinarian can prescribe appropriate treatment, which may include topical or oral antibiotics to target the bacterial infection.

How long does impetigo last in dogs?

With appropriate treatment, impetigo in dogs can start to improve within a few days, and the lesions may completely resolve within one to three weeks.

Is impetigo in puppies painful?

Impetigo in puppies is typically not very painful. Impetigo is a superficial skin infection that is most commonly caused by Staphylococcus bacteria. It often appears as small, pus-filled blisters or pustules that can rupture and form honey-colored crusts on the skin. While it may cause some mild discomfort or itching for the puppy, it is generally not considered a painful condition.

Conclusion

Impetigo in dogs is a common and generally mild skin condition that can be easily treated with the guidance of a veterinarian. While it may not pose a significant threat to your furry friend's health, it's essential to address it promptly to prevent discomfort and further complications. Regular grooming, good hygiene practices, and a healthy diet can go a long way in keeping your dog's skin healthy and free from infections. If you suspect your dog has impetigo or any other health concern, always seek professional veterinary care for an accurate diagnosis and appropriate treatment. Your dog's well-being and comfort depend on it.