TL;DR: A bloody nose in cats is a high-urgency medical emergency often caused by serious issues like poisoning or clotting disorders. Contact an emergency veterinarian immediately if the bleeding is persistent or your cat seems lethargic.
What is epistaxis and how does it manifest in cats?
Epistaxis is the clinical term for a bloody nose. In cats, this can manifest as a few droplets of blood while sneezing, a slow trickle from one nostril, or a steady flow from both. Unlike humans, cats rarely get nosebleeds from dry air; it usually indicates an underlying medical issue.
Is a bloody nose in my cat considered a medical emergency?
- A bloody nose in a cat is a high-urgency situation because it can indicate serious internal issues such as rodenticide poisoning, clotting disorders, high blood pressure, or trauma.
- Contact an emergency veterinarian immediately if the bleeding does not stop within a few minutes.
- Seek immediate care if the nosebleed is accompanied by other symptoms like lethargy or pale gums.
Why should I take a photo of my cat's nosebleed for the vet?
- A clear photo allows a professional to assess the volume of blood and its color, such as bright red versus dark.
- Photos help the vet identify localized swelling or facial asymmetry that may be harder to see during an active bleed.
- This visual information helps the veterinary team prepare for your arrival and prioritize your cat's care based on the visible severity.
Clinical Context (Merck Veterinary Manual)
In cats presenting with epistaxis, emergency care and triage should include assessment of mucous membrane color, capillary refill time, heart rate, pulse rate and quality, and level of consciousness to evaluate for underlying anemia, hypoxemia, or shock. Diagnostic evaluation should include a complete blood count, serum chemistry profile, and urinalysis to exclude concurrent systemic disease; a one-stage prothrombin time, partial thromboplastin time, and buccal mucosal bleeding time should be considered in addition to a platelet count. Imaging of the nasal chambers via nasal/dental radiographs should be considered, with CT providing excellent images of the nasal cavity and paranasal sinuses. Rhinoscopy and nasal flushing are useful diagnostic tools but should be delayed until after imaging to avoid iatrogenic changes. Common causes of epistaxis include oronasal neoplasia, dental disease (oronasal fistula), nasal foreign body, or nasopharyngeal disease (foreign body or mass lesions), as well as intranasal fungal infection.
Chapter: Otorhinolaryngology, Diagnostic Imaging, Clinical Pathology
Source: The Merck Veterinary Manual, 11th Edition (Page 1480)