Why Do Chickens Get Diarrhea? Causes & Solutions

Chickens may have diarrhea due to dietary changes, infections, parasites, or stress, which can disrupt their digestive system and lead to loose droppings.

Chicken diarrhea is a common but concerning issue for poultry owners. While occasional loose droppings are normal, persistent watery feces signal health problems requiring attention. Understanding the causes, symptoms, and treatments helps keep your flock healthy.

Chickens with diarrhea in a farm setting

How to Identify Chicken Diarrhea

Normal chicken droppings have three parts:

  • Firm brown fecal matter
  • White urates (their version of urine)
  • Clear liquid

Diarrhea appears as:

  • Watery, unformed droppings
  • Lack of solid matter
  • Foul odor
  • Feathers caked with droppings

One exception: caecal poop. This sticky, smelly brown/black paste is normal and occurs about once every 10 droppings.

Top causes chicken diarrhea health issues

Top Causes of Chicken Diarrhea

1. Bacterial Infections

Common culprits include:

  • E. coli
  • Salmonella
  • Clostridium perfringens

Bacterial infections often stem from contaminated feed or water. Regular deworming helps prevent parasitic infections that weaken immunity.

2. Viral Diseases

Serious viruses causing diarrhea:

  • Newcastle disease (high mortality)
  • Avian influenza
  • Infectious bronchitis

According to The Organic Farmer, Newcastle disease can kill 30-80% of an infected flock.

3. Parasites

Internal parasites wreak havoc:

  • Coccidiosis (bloody diarrhea in chicks)
  • Roundworms
  • Tapeworms

4. Dietary Issues

Food-related causes:

  • Sudden feed changes
  • Moldy feed
  • Excess treats/scraps
  • Lack of grit for digestion

5. Environmental Stressors

Conditions triggering diarrhea:

  • Heat stress (over 29°C/84°F)
  • Overcrowding
  • Poor sanitation
  • Introduction to new coop mates

Diagnosing the Cause

Symptom Possible Cause
Bloody diarrhea Coccidiosis
Green droppings Newcastle disease
Foamy droppings Internal parasites
Panting + diarrhea Heat stress

Treatment Options

Immediate Actions

  • Isolate sick birds
  • Provide electrolytes (recipe below)
  • Clean water with apple cider vinegar (1 tbsp/gal)

Electrolyte Recipe

Mix in 1 gallon water:

  • 8 tsp sugar
  • ½ tsp sea salt
  • ½ tsp baking soda

Medical Treatments

Depending on cause:

  • Antibiotics for bacterial infections
  • Amprolium for coccidiosis
  • Dewormers for parasites

As noted by Dine a Chook, chicks with suspected coccidiosis need immediate treatment as they deteriorate quickly.

Prevention Strategies

Hygiene Practices

  • Clean coops weekly
  • Disinfect waterers daily
  • Use lime on coop floors

Diet Management

  • Provide quality feed
  • Limit treats to 10% of diet
  • Offer grit for digestion

Stress Reduction

  • Ensure proper spacing (4 sq ft/bird in coop)
  • Provide shade in summer
  • Maintain consistent routines

When to Call a Vet

Seek professional help if:

  • Multiple birds affected
  • Blood in droppings
  • Birds stop eating/drinking
  • Diarrhea persists >2 days

Proper management prevents most cases of chicken diarrhea. Monitor your flock daily and address issues promptly for optimal poultry health.