Disease Symptom Checker

Last reviewed on 30 April 2026.

Pick a symptom from the menu below. The tool returns the most common conditions associated with that sign in backyard flocks, the typical first-line response, and which guides on the site go into more detail. It is a triage starting point, not a diagnosis.


How to use this checker

Pick the single most prominent sign you are seeing. If a bird has several symptoms — say, a hen who is lethargic and has loose droppings — start with whichever is most severe. Cross-reference the suggestions with the bird's overall picture: how long it has been off, whether other birds in the flock are showing the same signs, recent feed or environment changes, and the bird's age and laying status. Most early-stage problems in backyard flocks have benign explanations (a passing stress, a hot day, a one-off broody behaviour) but a small fraction need fast action.

When you should not wait for a tool

Some signs warrant a vet call rather than a search. Among them: severe respiratory distress with open-mouth breathing or audible rattle; sudden death of more than one bird in 24 hours; persistent bloody droppings; complete refusal to eat or drink for 24 hours in an adult bird; visible prolapse or stuck egg; severe wounds with active bleeding; suspected botulism (limp neck, weakness, paralysis). The first-aid kit guide covers the supplies that buy time while you arrange professional help.

Limits of symptom-based suggestions

Different conditions can produce similar signs. Sneezing can be infectious bronchitis, a Mycoplasma infection, dust irritation, or simply a chicken with feed in the wrong pipe. Lethargy can mean an internal lay problem, heat stress, parasites, or simply the start of a broody phase. The checker shortens the list of likely candidates; an examination — feel the crop, check the vent, look at the comb, weigh the bird if possible — narrows it further. The common diseases guide walks through these checks systematically.

What to record before calling a vet

If a sign persists or worsens, a short written record makes the consultation more useful: when symptoms started, what changed in the previous week (new bird, new feed, weather, treatment), the bird's age and breed, current laying behaviour, droppings character, appetite, water intake, body weight if known, and any treatments already given. A clear photo or short video of unusual behaviour can also help. The more concrete the picture, the faster a vet can rule conditions in or out.

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