Rabbit Vaginal Discharge: Causes of Blood, Pus or Abnormal Discharge

Abnormal discharge from a rabbit’s vulva is most concerning in intact female rabbits. The biggest causes are uterine disease, especially pyometra (infection in the uterus) and uterine adenocarcinoma (uterine cancer). Merck notes that uterine adenocarcinoma is one of the main reasons female rabbits are spayed, and VCA advises that bloody vaginal discharge in an unspayed female rabbit should make your vet suspicious of uterine cancer. In practical terms, blood, pink fluid, brown discharge, pus, or a bad odor all deserve prompt veterinary attention.

Pregnancy-related problems can also cause discharge. A rabbit that is pregnant, recently gave birth, or may have had a miscarriage can develop vaginal bleeding, tissue discharge, or infection in the uterus. Postpartum uterine infection is less common in pet rabbits than uterine cancer, but it can become serious quickly if bacteria spread or the rabbit stops eating.

Less common possibilities include vaginal trauma, severe inflammation of the reproductive tract, or discharge that is actually coming from the urinary tract rather than the vagina. Rabbit urine can vary in color, including orange to red, so pet parents sometimes mistake pigmented urine for blood. Still, if you are seeing clots, thick discharge, pus, or staining around the vulva, it is safest to assume this is abnormal until your vet examines your rabbit.

If your rabbit is spayed, true vaginal discharge is less common, but it still needs evaluation. Your vet may look for urinary disease, skin infection around the genital area, retained cervical or uterine tissue from prior surgery, or other uncommon reproductive tract problems.

See your vet immediately if the discharge is bloody, thick, white, yellow, green, foul-smelling, or paired with lethargy, hiding, tooth grinding, reduced appetite, fewer droppings, belly swelling, weakness, or trouble moving. Rabbits can decline fast when they are painful, septic, or developing GI stasis secondary to another illness. A rabbit that is straining, collapsing, breathing hard, or passing large amounts of blood needs emergency care the same day.

A rabbit should also be seen urgently if she is unspayed and older than about 2 years, because the risk of uterine disease rises with age. Merck states uterine cancer is very common in rabbits after 3 years of age, and VCA notes intact females over 3 years are at high risk for uterine and ovarian cancer. Even if your rabbit still seems bright, discharge in this age group should not be watched for several days at home.

There are only a few situations where brief monitoring may be reasonable: for example, a tiny amount of clear moisture on the vulva in an otherwise normal rabbit, or uncertainty about whether the stain came from urine rather than the reproductive tract. Even then, take photos, check the bedding, monitor appetite and droppings closely, and arrange a prompt appointment with your vet within 24 hours if you are not sure what you are seeing.

Do not try to treat this at home with leftover antibiotics, human pain medicine, or antiseptic washes. These can delay diagnosis, worsen gut health, or make your rabbit harder to stabilize.

Your vet will start with a careful history and physical exam. They will want to know whether your rabbit is spayed, her age, whether she has been around a male rabbit, when the discharge started, what color it is, and whether appetite, droppings, or activity have changed. On exam, your vet may check the vulva, abdomen, hydration, temperature, and signs of pain or shock.

Diagnostics often include abdominal palpation, X-rays, and especially ultrasound to look for an enlarged uterus, fluid-filled uterine horns, masses, pregnancy, or free abdominal fluid. VCA notes that uterine cancer may be suspected when your vet feels an enlarged uterus or sees thickening on imaging. Bloodwork is commonly used to assess infection, anemia, dehydration, and whether anesthesia is reasonably safe. If the source of bleeding is unclear, your vet may also recommend urinalysis.

Treatment depends on the cause and how stable your rabbit is. If your vet suspects pyometra, uterine cancer, or severe uterine disease, the most common definitive treatment is spay surgery to remove the ovaries and uterus. Rabbits that are weak, dehydrated, or not eating may need fluids, pain control, assisted feeding, warming support, and hospitalization before or after surgery.

If tissue is removed, your vet may recommend sending it to a lab for histopathology. That helps confirm whether the problem was infection, cancer, pregnancy-related disease, or another reproductive disorder, and it gives you a clearer idea of prognosis and follow-up needs.

Home care is supportive, not curative. Keep your rabbit warm, quiet, and on clean, dry bedding while you arrange veterinary care. Save a photo of the discharge and, if possible, bring a fresh sample of stained bedding or tissue in a sealed bag. That can help your vet tell the difference between urine staining, blood, and pus.

Watch closely for appetite changes, smaller droppings, hiding, grinding teeth, belly pressing, or reduced movement. Rabbits with pain or infection can slide into GI stasis fast. If your rabbit is not eating normally, is producing fewer droppings, or seems weak, treat this as an emergency rather than waiting for a routine appointment.

Do not bathe your rabbit, insert anything into the vulva, or give over-the-counter human medications. If the fur is soiled, you can gently wipe the outside area with a damp cloth and dry it well, but avoid scrubbing. Stress and chilling can make a sick rabbit worse.

After treatment, your vet may recommend pain medication, assisted feeding, activity restriction, incision checks, and recheck visits. Follow those instructions closely, because rabbits often hide discomfort until they are quite ill.