TL;DR: Vulvar swelling in a spayed cat is abnormal and requires a veterinary examination within 24 to 48 hours to identify underlying causes like infection or Ovarian Remnant Syndrome.
What causes vulvar swelling in a cat that has already been spayed?
Vulvar swelling in a spayed female is typically abnormal because hormonal triggers for the estrus cycle have been removed. This symptom may be caused by several underlying issues:
- Ovarian Remnant Syndrome (where a small piece of ovarian tissue remains in the body)
- Localized skin infections
- Urinary tract issues
- Vaginitis
Is my spayed cat’s swollen vulva a veterinary emergency?
The urgency level for this condition is Medium. While rarely an immediate life-threatening emergency, it indicates an underlying medical issue that needs to be addressed. Follow these steps for care:
- Schedule a veterinary appointment within the next 24 to 48 hours.
- Seek urgent care more quickly if you notice significant bleeding or pus-like discharge.
- Contact a vet immediately if your cat is lethargic and refusing to eat.
How does a photo help my veterinarian triage my cat's swelling?
Providing your veterinarian with a clear, well-lit photograph of the swelling can be an invaluable tool for several reasons:
- It allows the clinical team to assess the degree of inflammation and discharge before you arrive at the clinic.
- It captures a specific point in time to help the vet track whether the condition is improving or worsening.
- It helps the veterinary team determine the most appropriate urgency for your cat's triage.
Clinical Context (Merck Veterinary Manual)
Based on the provided excerpts, there is no clinically relevant information pertaining to the causes and triage advice for a swollen vulva in spayed cats. The excerpts discuss pyometra in dogs, vulvitis and vaginitis in large animals, and ulcerative vulvitis which are not applicable to the query.
Chapter: Reproductive, Urology
Source: The Merck Veterinary Manual, 11th Edition (Page 1398)