A pus-filled lump on your dog can be a worrying sight, but understanding the possible causes can help you take the right steps to get rid of it.
The lump could be a sign of a skin abscess, which is a pocket of pus that forms under the skin due to a bacterial infection.
Skin abscesses can be caused by a variety of bacteria, including Staphylococcus intermedius, which is commonly found on the skin and mucous membranes of dogs.
They can also be caused by other factors, such as a foreign object or a bite wound.
See what others are reading: Dog Skin Tumor Types
Causes and Prevention
Causes of abscesses are often related to bacterial infections that take hold within wounds. A bite from another animal is a common cause, introducing bacteria into the wound and leading to infection and abscess formation.
Certain breeds, such as the Chinese Shar-Pei, English Bulldog, and Labrador Retriever, are more prone to developing abscesses due to their short, stiff hairs that can get pushed back into the hair follicles and become infected.
Regular tick and flea preventive medications can help reduce insect bites and decrease the risks of skin abscesses in dogs. Keeping your dog's skin intact by avoiding injuries and making sure they don't have access to objects that can puncture or lacerate their skin is also crucial.
Some common causes of abscesses include:
- Pus-forming bacteria like Staphylococcus, Escherichia coli, certain Streptococcus species, Pseudomonas, Mycoplasma, Pasteurella multocida, Corynebacterium, Actinomyces, Nocardia, and Bartonella
- Bacteria that can only live and grow in the absence of oxygen, including Bacteroides, Clostridium, and Fusobacterium
What Causes?
Dogs can develop abscesses due to various reasons, including bacterial infections from wounds, bites, or scratches. Bacteria like Pasteurella multocida, Staphylococcus intermedius, and Escherichia coli are commonly found in skin infections.
Certain breeds, such as the Chinese Shar-Pei, English Bulldog, and Labrador Retriever, are more prone to developing abscesses due to their short, stiff hairs that can get pushed back into the hair follicles and become infected. Outdoor dogs are also more susceptible to abscesses due to their increased exposure to sharp objects and grass awns.
Injuries like wounds in the mouth from sharp objects, bite wounds from other animals, and ingrown hairs can lead to abscesses. Dogs who haven't been neutered or spayed are also at a higher risk of developing abscesses due to increased fighting and bite wounds.
A different take: Lump after Dog Bite
Here are some common causes of abscesses in dogs:
- Pus-forming bacteria like Staphylococcus, Escherichia coli, and Pasteurella multocida
- Anaerobic bacterial species like Bacteroides, Fusobacterium, and Clostridium
- Penetrating injuries from objects like sticks, grass seeds, and insect bites
- Previous infections in the same site
In some cases, abscesses can be caused by infections that spread from other parts of the body, such as the lungs, skin, or mouth. The immune system's method of containing an infection is by forming an abscess, which allows pathogen-fighting cells to mop up the bacteria in one place.
How to Prevent
Preventing abscesses in dogs requires attention to a few key areas. Neutering or spaying your dog can help reduce aggression that could lead to bite wounds.
Good dental hygiene is essential to prevent abscesses in the mouth area. Brush your dog's teeth regularly, provide dental chews, and schedule regular vet checkups.
Anal gland problems can also lead to abscesses, so keep an eye out for signs like scooting, licking, and a smelly bottom. Regular vet checkups can help catch any issues early on.
If you live in an area with grass seeds or foxtails, make sure to brush your dog's coat regularly, paying extra attention to their ears and feet. This can help prevent seeds or foxtails from getting stuck and causing an abscess.
Wounds that penetrate the skin, or wounds from a fight or bite, should be treated by a vet as soon as possible to prevent infection.
Here are some additional tips to help prevent abscesses:
By following these tips, you can help reduce the risk of abscesses in your dog and keep them healthy and happy.
Symptoms and Signs
A pus-filled lump on your dog can be a distressing sight, and it's essential to recognize the signs and symptoms to get your furry friend the necessary treatment. The symptoms of an abscess can depend on where it is located, but common indications include a soft or firm lump, redness, and swelling around the lump.
The area around the lump may feel warmer than the surrounding skin, and your dog may lick or bite at the spot in an effort to relieve the pain. Other symptoms may include pus or fluid oozing from the abscess, usually with a foul odor, hair loss at the inflamed area, and licking or chewing at the sore spot.
Take a look at this: Dog Lump Groin Area
Here are some common symptoms of an abscess in dogs:
- Lump underneath the skin, which might be soft and squishy or firm
- Reddened skin over the lump
- Swollen area is warmer than surrounding skin
- Pus or fluid oozing from the abscess, usually with a foul odor
- Hair loss at the inflamed area
- Licking or chewing at the sore spot
- Pain when infected area is touched
- Scooting the rear end on the ground
- Reluctance or refusal to eat
- Fever
- Lethargy
It's essential to note that the symptoms can vary depending on the location of the infection, and some abscesses may not show any outward signs until they have ruptured.
Recognizing Dog Illness Symptoms
A dog's abscess symptoms can depend on the location of the abscess. For example, an abscess in the skin can cause a soft or firm lump, redness, and warmth around the affected area.
If your dog has an abscess, you might notice a lump underneath the skin, which could be soft and squishy or firm. The skin around the lump will likely be red and swollen, feeling warmer than the surrounding skin.
Pus or fluid may ooze from the abscess, often with a foul odor. Your dog may also lick or chew at the sore spot, causing hair loss at the inflamed area.
Other signs of an abscess include pain when the infected area is touched, scooting the rear end on the ground, reluctance or refusal to eat, fever, and lethargy.
Here are some common signs of an abscess in dogs, grouped by location:
Keep in mind that internal abscesses can be difficult to diagnose without veterinary tests and instruments, and may result in few, if any, outward signs.
Some dogs may show signs of feeling unwell or painful for a few days before you notice anything externally. In these cases, you might notice fever, soft or firm swelling, or a weeping wound.
If your dog is showing any of these signs, it's essential to take them to the vet for proper diagnosis and treatment.
Refusal to Eat
Refusal to Eat is a common symptom of dental issues in dogs. Dogs with abscessed teeth typically become reluctant to eat due to the pain.
The pain can make it difficult for them to chew their food, especially hard kibble. Your dog might especially refuse kibble, as the hard food is more painful to chew than soft, canned meals.
A swollen face under the eye can also be a sign of dental problems. The roots of the teeth extend into this area, causing the swelling.
For your interest: Dog Rib Cage Lump
How to Treat an
Treat an abscess in your dog requires a trip to the vet, as antibiotics are necessary to treat the infection quickly and effectively. Delaying treatment could prolong your dog's pain and discomfort, and lead to a larger vet bill.
Your vet will likely sedate or anesthetize your dog before beginning to work on the wound, as draining an abscess is very painful. They will clip the hair around the swelling, disinfect the area with a surgical scrub solution, and lance the abscess to drain the pus.
To prevent the abscess from recurring, a drain or "wick" may be surgically stitched in place. Oral antibiotics are usually prescribed to help fight off and prevent further infection. Your vet may also recommend an Elizabethan collar or bandages to prevent your dog from bothering the wound while it heals.
Draining the abscess is crucial, and can be done by a vet as a short and non-invasive outpatient procedure. Most cases will only require local anesthesia, but larger skin abscesses may need sedation or general anesthesia.
Related reading: Veteran Dog Treats
Here's a summary of the treatment process:
- Lancing the abscess for proper drainage
- Flushing the abscess with a saline solution
- Prescribing oral antibiotics to prevent further infection
- Using an Elizabethan collar or bandages to prevent your dog from bothering the wound
- Monitoring the site for proper healing
It's essential to follow your vet's instructions and complete the full course of antibiotics to ensure the abscess heals properly and doesn't recur.
Diagnosis and Prognosis
Diagnosis of an abscess in your dog is usually made by your veterinarian based on the characteristic appearance and symptoms. They might also use a needle to withdraw a sample of fluid from the abscess to perform a culture and sensitivity test to determine the type of bacteria present.
Your veterinarian will use a laboratory test called a culture and sensitivity test to determine the type of bacteria present and the specific antibiotics that kill that bacteria. This test is done by swabbing the draining fluids from the abscess.
If your dog's abscess is treated properly, the wound should heal fully without further trouble. This means that once the abscess is fully drained and a course of antibiotics is completed, the wound should be fully healed.
How Vets Diagnose in Dogs
Your veterinarian will probably make the diagnosis of an abscess from the characteristic appearance and symptoms.
A veterinarian will use a needle to withdraw a sample of fluid from the abscess to perform a culture and sensitivity, which is a laboratory test that determines the type of bacteria present, along with the specific antibiotics that kill that bacteria.
Your vet might want to use a swab to collect draining fluids from the abscess to perform a culture and sensitivity.
Prognosis for Dogs
If your dog's abscess is treated properly, the wound should heal fully without any further trouble. The key is to ensure the abscess is drained fully and a course of antibiotics is completed.
If the abscess isn't treated, or is only partially drained, the wound will persist and can spread into the dog's bloodstream or to nearby organs. This can lead to serious complications.
Here are some key things to keep in mind regarding the prognosis for dogs with abscesses:
- Full recovery is possible if the abscess is treated properly.
- Persistent wounds can spread into the bloodstream or to nearby organs if left untreated or partially drained.
Frequently Asked Questions
How can I treat an abscess on my dog at home?
To treat an abscess on your dog at home, apply a warm compress and clean the area with cooled, boiled water to promote healing and prevent further irritation
Should I squeeze the pus out of my dogs wound?
Squeezing pus out of a wound can be done, but it's essential to do so gently to avoid pushing infection deeper into the wound. For guidance on safely draining a wound, consult a veterinarian or a reliable medical resource
Is it good if an abscess bursts on a dog?
If an abscess bursts on a dog, immediate first aid is necessary to prevent the skin problem from worsening. Seek veterinary attention right away for proper cleaning, disinfecting, and treatment.
Sources
- https://vcahospitals.com/know-your-pet/abscesses-in-dogs
- https://www.thesprucepets.com/abscess-signs-and-treatment-2804914
- https://www.dogster.com/ask-the-vet/how-to-treat-an-abscess-on-a-dog-at-home
- https://dogtime.com/dog-health/52857-abscesses-dogs-causes-symptoms-treatments
- https://firstvet.com/us/articles/abscesses-in-dogs-causes-and-treatment-options
Featured Images: pexels.com