Of all the rabbit conditions I treat, flystrike is the one that frightens me most, because it moves so fast and is so distressing. A rabbit can look fine in the morning and be critically ill by the evening. I have learned to treat every reported case as a true emergency, and I want every rabbit owner to understand it with the same urgency.
The hard truth is that flystrike is both deadly and largely preventable. In this guide I will explain exactly what happens, the signs that should make you act immediately, why some rabbits are more vulnerable, and the daily habits that keep flies from ever getting a foothold. If you are reading this because your rabbit already has signs, please call your vet now and read the rest afterwards.
What Is Flystrike in Rabbits?
Flystrike, known medically as myiasis, happens when flies are attracted to a rabbit (usually to a damp, soiled, or wounded area) and lay their eggs on the skin or fur. Those eggs hatch into maggots, often within hours, and the maggots begin eating into the rabbit’s living flesh. They release toxins as they feed, which can rapidly cause severe illness and shock.
The flies most often target the rear end and tail area, because that is where urine and droppings can collect. A clean, dry, well-groomed rabbit gives flies far less to land on, which is why prevention is so effective and why hygiene is the heart of protection.
Symptoms to Watch For
Early flystrike can be easy to miss if you only glance at your rabbit. You need to physically check the skin, especially around the bottom and tail. The signs progress quickly, so know what to look for.
What Causes It
Flystrike does not strike at random. Flies are drawn to specific conditions, and almost every case traces back to one or more of the groups below. Removing these triggers is how we prevent it.
Hygiene Problems
- Urine or droppings stuck to the fur
- Diarrhoea or soft caecotrophs
- Dirty, damp, or soiled bedding
- Infrequent cage cleaning
Grooming Difficulty
- Obesity preventing self-cleaning
- Arthritis limiting movement
- Dental disease and drooling
- Long or matted coat
Skin and Wounds
- Open sores or sore hocks
- Existing skin infections
- Surgical or injury wounds
- Urine scald
Environment
- Warm weather and high fly activity
- Outdoor hutches without fly screens
- Nearby food waste or compost
- Poor ventilation
The single biggest risk factor I see is a rabbit that cannot keep its own bottom clean, whether from weight, arthritis, dental pain, or a runny stool. Those rabbits need extra daily checks no matter the season.
Treatment and Recovery
Flystrike treatment is veterinary work and often intensive. The goal is to remove every maggot, stop remaining eggs from hatching, control pain and shock, and support the rabbit through recovery. Below is roughly how an emergency case proceeds.
Call Your Vet Immediately
Phone ahead so the clinic prepares for an emergency. Gently remove any visible maggots with tweezers while you arrange transport.
Stabilise the Rabbit
The vet treats shock with fluids, warmth, and pain relief, since many rabbits arrive seriously ill.
Clip and Clean
The fur is clipped away so every maggot can be found and removed and the wounds cleaned thoroughly.
Stop New Maggots
Medication is given to kill any remaining larvae and eggs, alongside antibiotics if infection is present.
Ongoing Wound Care
Recovery involves repeat cleaning, feeding support, and monitoring at home and at recheck visits.
With prompt care, many rabbits recover well, but the outcome depends heavily on how early treatment begins and how much tissue damage occurred. Throughout recovery you must also fix whatever caused the dirty rear end in the first place, or the rabbit stays at risk.
Prevention and Home Care
Prevention is where you have real power over this condition. Daily attention to your rabbit’s bottom and clean, dry housing prevent the vast majority of cases. Use this checklist, and increase your vigilance in warm weather.
- Check your rabbit's rear and tail at least twice daily in warm weather
- Keep the bottom clean and completely dry
- Clean housing thoroughly and remove soiled bedding promptly
- Feed a hay-based diet to keep droppings firm and reduce soft stool
- Manage weight so your rabbit can groom itself
- Fit fly screens on hutches and reduce nearby fly attractants
- Treat diarrhoea, dental disease, or sore hocks promptly with your vet
- Ask your vet about safe preventive products for high-risk rabbits
Safety note: Flystrike progresses within hours and can be fatal, so any maggots, foul odour, wet patches, or sudden weakness require same-day emergency veterinary care, not home treatment.