Flystrike is one of the few rabbit problems that can turn from preventable to life-threatening inside a single warm day. Blowflies are drawn to a rabbit's rear end when the fur there is damp, soiled, or matted, and they lay eggs that hatch into maggots which damage the skin beneath. The rabbit's best defence is not a product; it is a pair of human eyes on the right place, twice a day, all summer.
Why warm weather turns flies into an emergency
In cool months flies are sluggish and scarce; in summer they are active from morning to evening and hunt by smell. A rabbit who has sat in a soiled corner, has loose droppings stuck in the coat, or has a damp patch from a leaking water bottle carries exactly the scent signal a blowfly is looking for. Eggs laid in the morning can hatch the same day in real heat, and the maggots work into the skin quickly and quietly — a rabbit can look merely subdued while serious damage is already done underneath the fur. That speed is why prevention and early spotting matter so much more than any after-the-fact response.
The twice-daily rear-end check
Make the check a fixed habit, morning and evening, whenever the weather is warm. Lift your rabbit or settle them on your lap and look properly at the rear end and the skin around the tail and between the back legs, parting the fur rather than glancing at the surface. You are looking for eggs — tiny cream or white grains clustered like sawdust — plus any dampness, stuck droppings, redness, or a sweet, unpleasant smell. Gently clean away any soiling you find with a damp cloth and dry the coat thoroughly, since damp fur is the invitation. A rabbit who resents the check still needs it; work calmly and briefly rather than skipping a day.
Dry bedding, clean litter, fewer reasons for flies to gather
Flies cannot be kept out of a garden, but their reasons for lingering can be removed. Clear soiled bedding and the litter corner daily in summer rather than on your usual weekly rhythm, and replace damp patches under water bottles as you spot them. Keep the hutch and run as dry as the weather allows, with shade over the living area so the rabbit is not driven to sit in one hot, soiled spot. A fine mesh screen over hutch openings cuts the number of flies reaching the rabbit, and it earns its keep most on still, humid days when flies are at their busiest.
Rabbits who need a closer watch
Some rabbits cannot protect themselves and deserve a place at the front of your attention. Long-haired breeds mat around the rear and trap moisture against the skin. Elderly rabbits and any rabbit with stiff joints cannot twist round to groom the area clean. A rabbit carrying extra weight may be unable to reach, and one recovering from illness or with ongoing loose droppings produces exactly the soiling flies want. For these rabbits, add a midday check on hot days, keep the rear coat trimmed short and clean, and be quicker to call the vet about digestive upsets that leave the coat dirty.
The signs that mean a vet today, not tomorrow
Treat any of these as an emergency and phone a vet immediately: eggs visible in the fur, maggots of any size, broken or raw skin around the rear, a rabbit who has stopped eating, gone quiet and hunched, or a strong sweet smell from the coat. Do not wait to see how things look in the morning, and do not attempt to treat damaged skin yourself beyond gently removing loose eggs on the surface while you wait for advice. Flystrike moves faster than almost anything else a rabbit owner faces, and hours decide outcomes.
The routine only protects your rabbit if it happens every day, including the days you are busy or away, and KinsLe's Care Teams lets you assign the morning and evening checks to named people in the household, each confirmed with a timestamp, so a missed check shows up instead of slipping by.