Abscesses in dogs
What to do
Causes
When to worry
Prevention
Diagnosis
Home treatment
Vet treatment
Risks
Abscesses in dogs
An abscess is an enclosed area of pus caused by a bacterial infection. Abscesses can develop in different parts of the body and affect dogs of any age.
There are many different causes of abscesses. The most common types of abscesses are easy and quick to treat. There are less common types (mostly internal) that can be life-threatening if not treated promptly. Abscesses are painful for dogs, so we always recommend speaking to a veterinarian to discuss the best treatment for your dog.
What to do if your dog has an abscess
If you suspect your dog has an abscess, we recommend speaking to a vet as soon as possible. Abscesses are painful and usually require specific medication.
While waiting for an appointment, you can
Use a warm compress on the area to help relieve discomfort
Clean any discharge with cooled, boiled water to avoid crust build-up
Use a buster collar or pet medical suit to prevent self-trauma to the affected area
Let your pet rest in a quiet and comfortable area
Make sure they are eating and drinking
Be careful if you try to clean the area or apply a warm compress. Dogs may become aggressive when they are in pain. If they show any sign of this, then it is best to leave the area alone and get a vet appointment as soon as possible.
Abscesses can worsen if not treated promptly. Joii Vets are available 24 hours a day for advice. Call us now if you have any concerns.
Common causes of abscesses in dogs
Skin abscess: due to foreign material, such as grass seeds or sticks, or due to bite Wounds from other animals
Tooth root (dental) abscess
Anal gland abscess
Tumours leading to secondary infection
Abscess of the prostate gland
When you should be worried about abscesses in dogs
Seek help from a vet if
Your dog is in Pain
Your dog has not been eating or drinking for more than 24 hours
Your dog is passing blood in their urine
Call us and speak to one of our Joii Vets
For advice about how to keep your dog’s mouth healthy and prevent Bad breath
For advice about how to help prevent anal gland disease
If you have any questions about neutering your dog
If your dog has been bitten by another animal
Tips on how to prevent your dog from getting abscesses
Unfortunately, not all abscesses are preventable; however, there are measures that dog owners can take to reduce the chances of certain types:
Speak to a vet as soon as possible if your dog has been bitten or scratched by another animal, thorough cleaning as early as possible is important
Avoid areas where there are grass seeds during the summer months
Check your dog over after walks and remove any grass seeds or foreign objects from their coat. Make sure to check in between their toes, as this is a common area where they get stuck.
Avoid playing with sticks
Get your dog’s teeth checked at least every 6 months with your vet
Keep your dog's teeth clean by brushing them with a dog friendly toothpaste and using a special dental food
If your dog has anal gland issues, use fibre supplements and get them checked or emptied when needed
Getting your male dog neutered can prevent prostate abscesses
Keep your dog in healthy body condition
Speak to our Joii team if you have any questions about preventing abscesses in dogs.
How to know if your dog has an abscess
The symptoms of any abscess depend on where it is located
The most common signs are heat, swelling, and pain in the area (unless it is inside a body cavity)
Your dog may try to constantly lick or bite the area where the abscess is
The abscess may rupture and produce a smelly discharge of pus and blood.
Dogs with an abscess may also have a fever, which can cause a reduced appetite and lethargy
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Limping is a common sign if the abscess involves a limb

Anal gland abscess signs
Pain and swelling around the anus
Scooting and rubbing their bottom on the ground
Excessive biting and hair loss around the bottom or back legs
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Straining to pass stools

Tooth root abscess signs
Bad breath and chewing on one side
Drooling
Swelling on the face, usually below the eye
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Pawing at their face or rubbing it on the floor

Prostate abscess signs
Straining to pass stools and urine
Blood in the urine
Tummy pain and reluctance to walk
How to treat abscesses in dogs at home
Unfortunately, most abscesses will require a physical exam and prescription medication for treatment.
Once your dog is on the appropriate medication, you can
Make sure to give the medication as often as advised; do not skip doses or finish the course early
Clean the open abscess with saline if your vet recommends it
Give your dog a quiet and comfortable place to rest in the house. Avoiding exercise during treatment is usually advised, especially if surgery is involved
Ensure your dog is eating well: soft food or a highly palatable diet may be needed for certain conditions
Monitor your dog closely: if the swelling or pus are not disappearing, then other medication may be needed
Abscesses do not normally spread to other areas of the body or other pets
Vet treatment for abscesses in dogs
Treatment of an abscess will depend on where it is located and the cause.
Most abscesses will require antibiotics and anti-inflammatory pain relief medication
Some will need to be lanced (cut-open) and flushed, including removal of any foreign material (bite abscesses and those with grass seeds or sticks)
Others may require more specific surgery, such as tooth removal, tumour removal or castration
Sedation or anaesthesia is needed for all of these procedures
After a full clinical exam (including a rectal exam to check the prostate), the following tests may be required
Analysis of a sample of the discharge from the abscess
Blood and urine tests to check for underlying disease
Imaging: x-rays, ultrasound, CT or MRI, depending on where the abscess is located
Are some dogs at more risk of abscesses than others?
Older, unneutered dogs are more at risk of prostate abscesses. This is a condition that does not affect female dogs.
Older dogs, small breeds (such as Yorkshire terriers and Chihuahuas), short face dogs (such as Pugs and Bulldogs) and stick or stone chewers are at higher risk of dental disease and a tooth abscess
Dogs with diarrhoea, allergies, poor diets and small breeds (such as Spaniels, Shih Tzus and Bichon Frises) are more likely to develop an anal gland abscess.
Other causes of abscesses in dogs
Liver abscesses in dogs are rare. Usually caused by a bacterial infection in the blood. Symptoms include lethargy, fever, reduced appetite, and vomiting.
Lung abscesses in dogs are very rare. They are usually caused by severe pneumonia, trauma, or an inhaled foreign object. Symptoms include reduced appetite, coughing, lethargy, and fever.
Brain abscesses are rare in dogs. Causes include inner ear infections or trauma. Symptoms include fever, seizures, and behavioural changes.
Post-surgical reactions are abscesses that form at the site of incision. Risks include longer operations, moist wounds (i.e. due to licking), and wounds that are not clipped and cleaned properly. Symptoms include pus, pain, and swelling.