White material in a chicken dropping is not automatically diarrhoea or disease. Birds normally pass faeces, clear urine and white or cream urates together. Concern begins when droppings change persistently, become unusually watery or occur with weakness, pasted vents, poor growth, reduced appetite or deaths.
“White diarrhoea” describes an appearance, not a diagnosis. Pullorum disease is one possible cause in young chicks, but dietary changes, heat, excessive drinking and several unrelated diseases can create similar-looking droppings. Treatment should follow diagnosis rather than colour.
Normal urates or abnormal diarrhoea?
A normal chicken dropping usually contains:
- Faeces: the brown, greenish-brown or grey-brown solid portion;
- Urates: the normal white or cream paste produced from uric acid; and
- Urine: a small amount of clear liquid.
The proportions vary with diet, temperature, water intake and the individual bird. An isolated wet dropping or a prominent white cap can be normal. Normal cecal droppings are also softer, darker and stronger-smelling than ordinary droppings.
Watch the pattern. Repeated watery droppings dominated by white material, especially in several birds or alongside illness, need investigation.
Infographic: how to respond to white droppings
White or cream urates are normal. One wet dropping does not diagnose disease.
Concern rises when changes persist, affect several birds or occur with pasted vents, weakness, poor appetite or deaths.
Photograph fresh droppings, record flock changes and collect samples as directed by a veterinarian or laboratory.
Colour alone cannot identify Pullorum disease, coccidiosis, worms or bacterial infection.
Possible causes of white, watery droppings
Increased urine or water intake
What looks like diarrhoea may be extra urine surrounding formed faeces. Hot weather, increased drinking, watery foods and some health conditions can increase the liquid portion. Check whether solid faecal material is still present before assuming the intestine is producing diarrhoea.
Pullorum disease
Pullorum disease is caused by Salmonella enterica serovar Gallinarum biovar Pullorum. It is primarily a severe systemic infection of young chickens, although turkey poults may also be affected. Infected adult birds can carry the organism without obvious illness and transmit it through eggs.
Young chicks may show weakness, loss of appetite, dehydration, huddling, pasted vents, diarrhoea and increased mortality. White material around the vent contributed to the historical name “bacillary white diarrhoea,” but these signs are not unique to Pullorum disease.
Suspected Pullorum disease requires veterinary and laboratory involvement. Culture, molecular tests or officially recognised flock tests may be needed. Because control rules and reporting requirements vary by country, contact the relevant veterinary authority rather than treating a suspected outbreak as ordinary digestive upset.
Coccidiosis and other intestinal disease
Coccidiosis can produce diarrhoea, poor growth, reduced feed intake, lethargy and sometimes blood or mucus. It does not always cause bloody droppings, but white colour alone does not identify it. Diagnosis may involve flock history, clinical findings, faecal examination and examination of intestinal lesions.
Bacterial enteritis, viral disease, worms and other intestinal problems may also change droppings. Many share the same general signs, so appearance cannot reliably separate them.
See our guides to controlling coccidiosis in poultry and worms in chickens, turkeys and ducks.
Feed, toxins and management changes
A sudden feed change, spoiled feed, contaminated water, excessive treats or exposure to a toxin can disturb digestion. Heat stress and transport may also alter water intake and droppings. Review recent changes across the flock, but do not assume management is the cause when birds are becoming seriously ill.
Kidney or systemic illness
Changes in urine or urates can occur when a bird has a wider health problem. Excess white material, excessive clear liquid or an unusual urate colour should be assessed with the bird’s appetite, hydration, body condition, breathing, behaviour and egg production. A dropping alone cannot identify the affected organ or disease.
Signs that require prompt veterinary help
Seek professional advice promptly when white or watery droppings occur with:
- rapidly rising chick mortality;
- weakness, huddling or collapse;
- pasted vents affecting multiple chicks;
- loss of appetite or failure to drink;
- dehydration or marked weight loss;
- blood or black, tar-like material;
- breathing difficulty or nervous signs;
- a sudden production drop; or
- illness spreading through the flock.
Sudden deaths, serious respiratory or nervous signs, or a suspected notifiable disease should be reported through the animal-health system that applies in your country.
How the cause is diagnosed
A useful investigation combines several types of evidence:
- Flock history: age, source, vaccination, feed, recent introductions, mortality and when signs began.
- Clinical examination: hydration, body condition, crop, vent, breathing, comb colour and behaviour.
- Fresh samples: faeces, swabs or tissues collected as directed by a veterinarian or diagnostic laboratory.
- Laboratory testing: faecal flotation, bacterial culture, PCR, serology or postmortem examination, depending on the suspected cause.
A positive parasite result must be interpreted alongside clinical signs and flock history. Likewise, diarrhoea does not prove bacterial infection or justify antibiotics without further evidence.
What to do while seeking a diagnosis
- Separate visibly ill birds when this can be done without adding harmful stress.
- Keep affected birds warm, dry and protected from crowding.
- Provide clean drinking water and an appropriate complete poultry feed.
- Remove wet litter and reduce faecal contamination of feeders and drinkers.
- Record illness and deaths by age group and pen.
- Photograph fresh droppings and collect samples according to professional instructions.
- Restrict unnecessary movement of birds, equipment and people between poultry areas.
Supportive care can help maintain hydration, but severely affected birds may require individually managed fluids. Sick birds often drink less, so adding a product to communal water does not guarantee an effective dose.
Treatment and medication safety
There is no single “white diarrhoea medicine.” Antibiotics, anticoccidials and dewormers act against different organisms. Antibiotics do not kill the Eimeria parasites that cause coccidiosis, and anticoccidials do not treat Pullorum disease or other bacterial infections.
Do not select penicillin, tetracyclines, amprolium or any other medicine solely from the colour of the droppings. Unnecessary or incorrect medication can delay diagnosis, fail to control flock infection, contribute to antimicrobial resistance and create egg or meat residue risks.
Use only products authorised for the bird class and purpose in your country. Follow the label, veterinary direction and all egg and meat withdrawal periods.
Why Pullorum disease needs flock-level control
Treating individual signs does not necessarily eliminate carrier birds or egg transmission. Pullorum-control programmes rely on surveillance, testing, clean breeding stock and movement controls. Where eradication or official control rules apply, follow the veterinary authority’s instructions.
Prevention
- Buy chicks and hatching eggs from reputable, tested sources.
- Quarantine new birds and avoid mixing age groups without a health plan.
- Clean and disinfect equipment between batches.
- Keep litter dry and prevent droppings from contaminating feed and water.
- Control rodents, wild-bird access and movement between poultry houses.
- Use an appropriate vaccination and parasite-control programme designed for the flock and region.
- Investigate unusual mortality rather than repeatedly treating signs without a diagnosis.
Frequently asked questions
Are white parts in chicken poop normal?
Yes. White or cream urates are a normal part of bird droppings. Concern rises when there is a persistent major change or when abnormal droppings occur with illness.
Does white diarrhoea prove Pullorum disease?
No. Pullorum disease can cause diarrhoea and pasted vents in young chicks, but the same appearance can occur for other reasons. Laboratory or officially recognised testing is required for a reliable diagnosis.
Can I diagnose coccidiosis from white, watery poop?
No. Coccidiosis has overlapping signs with other intestinal problems. Faecal findings, flock history, clinical signs and sometimes examination of intestinal lesions are needed.
Should I give antibiotics immediately?
Not based on colour alone. Antibiotics only act against susceptible bacteria. They do not treat viral disease, worms or coccidia, and their use in food-producing birds is regulated.
Video: practical poultry biosecurity
This USDA video explains general biosecurity practices that help reduce disease entering or spreading through a flock. It does not diagnose white diarrhoea or replace veterinary testing.
Video source: USDA APHIS Defend the Flock.
Sources and further reading
- World Organisation for Animal Health: Pullorum Disease
- USDA APHIS: National Poultry Improvement Plan
- MSD Veterinary Manual: Coccidiosis in Poultry
- Merck Veterinary Manual: Helminthiasis in Poultry
White or watery droppings are a signal to observe and investigate. They are not a diagnosis. Use the flock’s complete clinical picture and reliable testing before choosing treatment.
