Does My Dog Have Mastitis? How to identify, treat, and prevent mastitis in nursing mothersMastitis means inflammation of the mammary tissue (breast tissue). This painful condition typically occurs when one or more of the mammary glands (mild-producing glands) becomes infected. Mastitis most commonly affects female dogs after they give birth but may also occur after a false pregnancy. Mastitis is potentially life-threatening and must be treated right away. Here we discuss the possible causes of mastitis and what to look for.FirstVet is the #1 online video veterinary service.FirstVet offers video calls with experienced veterinarians for just $35. You can get a consultation within minutes by downloading the FirstVet app for free from the Apple App Store or Google Play Store. Over 500,000 users trust FirstVet to care for their animals. Rating: 4.9 - more than 1600 reviewsRating: 4.9 - more than 1300 reviewsRating: 4.9 - more than 1600 reviews Download app Signs of MastitisDepression or lethargyDecreased appetiteFever (temperature over 102.5°F)DehydrationNot wanting to nurse the puppies or seeming uncomfortable when nursingFailure of the puppies to thriveHot, firm, swollen and painful breast tissue (mammary glands)Thin cream-colored, watery, or blood-tinged fluid can be expressed from the affected gland(s)Signs of septic shock (shaking, weakness, panting, fever, low blood pressure)Abscess or gangrene of the affected gland(s) if left untreatedCauses of MastitisMastitis is caused by several well-known bacteria: Escherichia coli (E. coli), Staphylococci, and β-hemolytic Streptococci are most commonly cultured.Bacteria gain access to the mammary gland by several possible routes:Ascending infection, up the teat canal from the skinInfection caused by trauma to the nipple, teat canal, or mammary glands from the puppies’ teeth or nailsPoor environmental hygieneThe spread of a systemic infection going on elsewhere in the bodyProlonged periods of milk accumulation in the gland without milk removal - many cases of mastitis result from sudden weaning of the puppies.What Can You Do to Help Your Dog?In most cases, mastitis can be prevented!Always keep the environment and whelping box as clean as possible.Ensure that all the mammary glands are used for nursing.Regularly trim the puppies’ nails to prevent scratching and trauma to the mother’s skin.Keep the mother’s skin clean: excessive hair can be carefully trimmed, and the skin rinsed with warm water or saline twice a day (1 teaspoon of salt in 2 cups of cooled boiled water). The skin should be patted dry afterward.A warm or cold gel compress wrapped in a cloth can be used to reduce inflammation. Apply the compress for no more than 20 minutes at a time.Treatment of MastitisWhen caught early, the prognosis for mastitis is good. Your vet will likely recommend culturing blood or milk samples. This will help determine the type of bacteria causing the infection so proper treatment can be provided. The mother will likely require antibiotic medication, specific to the bacteria involved.If the infection is mild, the puppies will typically be allowed to continue nursing. Your vet may also advise you to express milk from the infected gland(s) several times a day to help clear the infection. This makes the mother more comfortable, encourages blood flow, and promotes healing. It’s important to monitor the puppies closely for any side effects of the medication, which may be present in the milk at low levels. Your vet will let you know if this is a concern.If the mother is very ill or in septic shock, she will need to be hospitalized. Intravenous fluids, pain relief, and specific antibiotics for the infection will be essential. The prognosis for these cases is guarded, even with aggressive treatment. Unfortunately, abscessed or gangrenous glands will require surgical removal under general anesthesia.When is it Time to Visit a Vet?If you notice that your dog has any signs of mastitisShe is not comfortable nursing her puppiesShe has a feverStill worried?Book a video appointment to speak with one of our vets.