Use this chicken symptom checker to find the likely causes behind what you’re seeing and go straight to the right guide. Read this as a starting point, not a diagnosis: chickens hide illness well, symptoms overlap, and anything serious or fast-moving warrants a call to a vet. When in doubt, treat it as urgent — a bird that looks ‘a little off’ is often sicker than it appears.
| What you see | Possible causes | Read next |
|---|---|---|
| Lethargic, standing alone, fluffed up | Many illnesses start this way — infection, parasites, or pain. A non-specific danger sign that something is wrong. See a vet promptly. | Signs your chicken is sick |
| Pale or purple comb | Can signal poor circulation, anemia from parasites, or respiratory trouble. See a vet promptly. | Signs your chicken is sick |
| Bloody or unusual droppings | Possible coccidiosis (especially in chicks), worms, or gut infection. See a vet promptly. | Chicken digestive health |
| Straining, penguin stance, no egg | Possible egg binding — an emergency in a laying hen. See a vet promptly. | Egg & shell problems |
| Labored breathing, gaping, sneezing | Possible respiratory infection, or ammonia/moisture from poor coop air. See a vet promptly. | Signs your chicken is sick |
| Swollen, hot foot or limping | Possible bumblefoot or injury. See a vet promptly. | Signs your chicken is sick |
| Feather loss in patches | Often molt or feather picking; sometimes mites or lice. | Feather loss guide |
| Squishy, sour-smelling crop | Possible sour crop or slow/impacted crop. | Chicken digestive health |
| Thin, soft, or shell-less eggs | Often a calcium, age, or stress issue. | Egg & shell problems |
| Chick can’t stand / legs splayed | Possible spraddle leg or a vitamin/curled-toe issue — act early. See a vet promptly. | Chick leg & paralysis problems |
| Droppings stuck to a chick’s vent | Pasty butt — clean gently; common in chicks. | Chick problems |
| Messy, foul-smelling vent area | Possible vent gleet (a fungal/bacterial infection). | Signs your chicken is sick |
| Sudden drop in eggs across the flock | Often light, molt, stress, or season; sometimes illness or parasites. | How many eggs does a chicken lay |
| Weight loss despite eating | Possible worms or another internal parasite. See a vet promptly. | Signs your chicken is sick |
| Frostbitten comb after cold, damp nights | A moisture-in-the-coop problem more than a cold one. | Coop ventilation |
This tool points you toward our detailed guides and does not replace veterinary care. For a sick, injured, or rapidly declining bird, contact a poultry-savvy veterinarian.