Stomatitis in African Grey Parrots: Mouth Inflammation, Plaques, and Pain

Quick Answer
  • Stomatitis means painful inflammation inside the mouth. In African Grey parrots, pet parents may notice white plaques, red tissues, drooling, bad breath, reduced appetite, or food dropping from the beak.
  • Common underlying triggers include yeast or bacterial infection, trichomoniasis, vitamin A deficiency linked to seed-heavy diets, oral trauma, caustic irritation, and disease affecting the crop or upper digestive tract.
  • A bird that is not eating well can decline fast. See your vet promptly if your African Grey has mouth lesions, weight loss, regurgitation, trouble swallowing, or open-mouth breathing.
  • Diagnosis usually requires an avian exam plus oral inspection, weight check, and targeted testing such as cytology, culture, fecal or crop testing, and sometimes bloodwork or imaging to find the underlying cause.
  • Typical US cost range for diagnosis and treatment is about $180-$1,500+, depending on whether care is limited to an exam and medications or includes sedation, lab work, imaging, hospitalization, or assisted feeding.
Estimated cost: $180–$1,500

What Is Stomatitis in African Grey Parrots?

Stomatitis is inflammation of the tissues inside the mouth. In parrots, that can involve the tongue, palate, choana, gums, and the lining of the beak. Instead of being one single disease, stomatitis is usually a sign that something else is wrong. The mouth may look red, swollen, ulcerated, or covered with white or yellow plaques.

In African Grey parrots, mouth pain matters quickly because eating, preening, vocalizing, and normal beak use all depend on a healthy oral cavity. A sore mouth can lead to reduced food intake, weight loss, dehydration, and stress. Some birds also develop regurgitation or crop problems at the same time, especially when yeast or upper digestive disease is involved.

White plaques in the mouth can be seen with candidiasis, and mouth lesions with white material or mucus can also occur with trichomoniasis. Seed-heavy diets may contribute by setting the stage for vitamin A deficiency, which can change the lining of the mouth and upper airway and make secondary infection more likely. Because several different problems can look similar, your vet usually needs to identify the cause before treatment is chosen.

Symptoms of Stomatitis in African Grey Parrots

  • White, yellow, or cream-colored plaques in the mouth
  • Red, swollen, or ulcerated mouth tissues
  • Drooling or wet feathers around the beak
  • Bad breath or foul mouth odor
  • Pain when eating, chewing, or accepting treats
  • Dropping food, slower eating, or refusing harder foods
  • Weight loss or a lighter body condition
  • Regurgitation or mucus from the mouth
  • Pawing at the beak or resisting mouth handling
  • Open-mouth breathing, trouble swallowing, or marked lethargy

Mild stomatitis may start with subtle changes, like picky eating, less interest in pellets, or a small white patch in the mouth. More painful cases can cause drooling, food dropping, weight loss, and obvious distress when the bird tries to eat. Because parrots often hide illness, even a small oral lesion deserves attention.

See your vet urgently if your African Grey is eating less, losing weight, regurgitating, or has thick plaques, bleeding, or swelling near the choana or glottis. See your vet immediately if there is open-mouth breathing, severe weakness, or trouble swallowing, since swelling or debris in the mouth can interfere with airflow and rapid stabilization may be needed.

What Causes Stomatitis in African Grey Parrots?

Stomatitis in parrots has many possible causes. Infectious causes include Candida yeast, which can produce white plaques or pseudomembranes in the oral cavity, esophagus, and crop, and Trichomonas infection, which can cause inflammation, ulceration, and white material in the mouth or upper digestive tract. Bacterial overgrowth may occur on top of damaged tissue, especially when the bird is already stressed or not eating well.

Nutrition is another important piece. Seed-heavy diets are low in vitamin A, and vitamin A deficiency has been linked to white spots and infected lesions in and around the mouth. In parrots, poor diet can also change the normal lining of the upper digestive and respiratory tract, making infection more likely. African Greys are not the classic species most often discussed for oral vitamin A problems, but any parrot on an imbalanced diet can be affected.

Noninfectious causes matter too. Oral trauma from cage hardware, burns, foreign material, or self-inflicted injury can inflame the mouth. Caustic or irritating substances may cause erythema, drooling, and ulceration. In some birds, stomatitis is part of a broader problem involving the crop, esophagus, toxins, or systemic illness. That is why your vet will usually look beyond the mouth itself rather than treating the plaques alone.

How Is Stomatitis in African Grey Parrots Diagnosed?

Diagnosis starts with a careful history and physical exam by an avian veterinarian. Your vet will ask about diet, recent appetite changes, weight trend, droppings, regurgitation, new toys or cage materials, possible toxin exposure, and contact with other birds. A gentle oral exam may reveal plaques, ulcers, swelling, choanal changes, or debris, but some parrots need restraint or light sedation for a safe, complete look.

Because stomatitis is a syndrome rather than one diagnosis, testing is often targeted to the suspected cause. Your vet may recommend cytology or swabs from oral lesions, fungal or bacterial culture, crop evaluation, fecal testing, and bloodwork to assess hydration, inflammation, and overall health. If the bird is losing weight, regurgitating, or seems systemically ill, imaging such as radiographs may help rule out crop or upper GI disease, foreign material, or other internal problems.

In some cases, your vet may also assess diet quality and body condition closely, since nutritional disease can contribute to oral lesions and poor healing. The goal is not only to confirm stomatitis, but to identify whether the main driver is infection, irritation, trauma, nutrition, or a deeper medical problem. That answer shapes the treatment plan and the expected recovery time.

Treatment Options for Stomatitis in African Grey Parrots

Spectrum of Care means you have options. Here are treatment tiers at different price points.

Budget-Conscious Care

$180–$350
Best for: Mild cases in a bright, still-eating bird when your vet suspects early infectious or nutritional stomatitis and the bird is stable for outpatient care.
  • Office exam with weight check and oral assessment
  • Basic stabilization advice and husbandry review
  • Targeted outpatient medication when lesions are mild and the cause is strongly suspected
  • Diet transition guidance toward balanced pellets and vitamin A-rich produce if appropriate
  • Home monitoring plan for appetite, droppings, and daily gram weight
Expected outcome: Often fair to good if the underlying cause is mild, treatment starts early, and the bird keeps eating.
Consider: Lower upfront cost, but less testing means the exact cause may be missed. If plaques persist, weight drops, or regurgitation develops, the bird may need a step up in care quickly.
Most Common

Recommended Standard Treatment

$350–$850
Best for: Most African Grey parrots with clear mouth pain, plaques, reduced appetite, weight loss, or recurrent lesions.
  • Avian exam plus more complete oral evaluation
  • Cytology or lesion sampling, with culture when indicated
  • Fecal or crop testing if regurgitation or upper GI disease is suspected
  • Pain control and cause-directed medication selected by your vet
  • Fluid support, assisted feeding plan, and recheck visit
Expected outcome: Good in many birds when the cause is identified and treated early. Recovery may take days to weeks, and diet correction is often part of long-term control.
Consider: Higher cost than minimal care, and some birds need restraint or sedation for a full oral workup. Follow-up visits are commonly needed.

Advanced / Critical Care

$850–$1,500
Best for: Birds with severe plaques, marked weight loss, dehydration, open-mouth breathing, repeated regurgitation, suspected obstruction, or failure of outpatient treatment.
  • Sedated oral exam with thorough debridement or sampling when needed
  • CBC/chemistry and advanced diagnostics
  • Radiographs or other imaging for crop, esophageal, or systemic disease
  • Hospitalization for fluids, thermal support, oxygen, or assisted feeding
  • Intensive treatment for severe infection, airway compromise, or a bird that has stopped eating
Expected outcome: Variable but can be good if the underlying problem is treatable and care begins before severe malnutrition or airway compromise develops.
Consider: Most intensive cost range and more handling. However, it gives the best chance to identify complicated disease and support a fragile bird through recovery.

Cost estimates as of 2026-03. Actual costs vary by location, clinic, and individual case.

Questions to Ask Your Vet About Stomatitis in African Grey Parrots

Bring these questions to your vet appointment to get the most out of your visit.

  1. What do the mouth lesions look most consistent with in my African Grey—yeast, bacteria, trichomoniasis, trauma, or a nutrition problem?
  2. Does my bird need cytology, culture, crop testing, bloodwork, or X-rays today, or can we start with a more conservative plan?
  3. Is my parrot painful enough to need medication for comfort, and how will I know if pain is improving?
  4. Should I change foods right away, and which pellets and vitamin A-rich vegetables are safest to introduce during recovery?
  5. How much should my bird weigh, and do you want me to track daily gram weights at home?
  6. What signs mean the condition is becoming an emergency, especially around swallowing or breathing?
  7. If the plaques do not improve, what is the next diagnostic step and what cost range should I plan for?
  8. Could this mouth problem be related to crop disease, toxin exposure, or another illness outside the mouth?

How to Prevent Stomatitis in African Grey Parrots

Prevention starts with the basics: a balanced diet, clean environment, and early attention to subtle changes. Many oral problems in parrots are made worse by seed-heavy feeding, so work with your vet on a diet built around a quality formulated pellet plus appropriate vegetables. Foods naturally rich in vitamin A precursors, such as dark leafy greens and orange vegetables, may help support normal epithelial health when used as part of a balanced plan.

Good hygiene also matters. Wash food and water dishes daily, clean perches and cage surfaces regularly, and remove spoiled soft foods promptly. If your bird has contact with other birds, avoid shared dishes and quarantine new arrivals before introduction. This helps reduce exposure to infectious organisms that can affect the mouth, crop, and upper digestive tract.

Try to reduce oral injury risks at home. Check toys, cage bars, and hardware for sharp edges, rust, peeling coatings, or materials your bird could chew and irritate the mouth with. Keep household cleaners, aerosols, toxic plants, and other caustic substances away from your bird’s environment. Finally, schedule routine wellness visits with your vet, because weight loss, diet imbalance, and early oral lesions are often easier to manage before they become painful stomatitis.

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