Breast cancer in dogs: what you need to know now

October is Breast Cancer Awareness month highlighting the need for us to be aware of the condition in humans and what symptoms to look out for.  But did you know that dogs can get breast cancer too?  Cancer is a word that we all dread to hear. We thought it would be helpful to give some tips for things to check for in your dog, as early detection of the disease can be the key to a good outcome.

Breast cancer in dogs is more common than you might realise. 25% of unspayed females will develop breast cancer. The good news is that half of those tumours that develop will be malignant and the other half can be treated successfully when caught early. Although males do not develop mammary tumours as commonly, those that do have breast cancer tend to have aggressive development. So being vigilant to ensure early detection is key.

Sadly, certain breeds are more prone to developing breast cancer than others. These include breeds such as Cocker Spaniels, Brittany Spaniels, Poodles, German Shepherds, and Dachshunds. Check with your vet to see if your dog’s breed is on the more-at-risk list, so you can be better prepared and fully alert to symptoms.

Symptoms of breast cancer in dogs

There are multiple symptoms to be aware of. If your dog presents with any of the following it is advised to book a prompt medical examination with the vet:

  • Swollen or painful breast area
  • Discharge from nipples
  • New lumps or bumps
  • Weight loss
  • Fatigue

Detection and treatment of breast cancer

Your vet may arrange for x-rays and/or biopsies. If mammary tumours are detected they are typically removed surgically.  Malignant tumours may require chemotherapy. Your vet will be able to discuss treatment options with you. 

Information given in this article is not a substitute for advice from a qualified medical professional. Please consult a vet for advice specific to your dog.