Vaginal Discharge in Cats

2 min read

Vaginal discharge refers to any substance (mucus, blood, pus) excreted by the cat's vagina. Because there are so many causes for this medical condition, consulting a veterinarian is highly recommended.


Vaginal discharge can affect both dogs and cats. If you would like to learn more about how this disease affects dogs please visit this page in the PetMD pet health library.




Symptoms can include discharge (mucus, blood, pus) from the cat's vagina, spotting of blood, scooting of the hindquarters, and a higher incidence of male attraction.




There are many risk factors which can lead to vaginal discharge; some of the more common causes include:


  • Vaginal trauma
  • Vaginal infection
  • Urinary tract infection
  • Abnormal cells in the vaginal area
  • Retained placenta following a birthing
  • Fetal death (in cases of pregnant females)
  • Presence of a foreign object in the vaginal cavity


Estrogen medications given during some phases of the cat's heat or estrous cycle, medications containing male hormones and certain antibiotics can alter the vaginal cells, leading to excess discharge. There are also some antibiotics which can cause vaginal discharge.




Upon examination, the veterinarian may find blood, pus, urine or feces in abnormal quantities. The veterinarian will need to review the cat's medical history and make a risk assessment. In order to properly treat the condition, radiograph or injection imaging may be used to examine the cat's body to identify the underlying medical condition causing the vaginal discharge.


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