Sinusitis
Learn what the condition is, how it may be detected early, how it is treated or managed, and which breeds or species are linked to it.
Condition snapshot
A concise guide to the condition’s pattern, detection, management and urgency.
Cause-specific contact precautionsSeparate contacts only when a transmissible cause such as Chlamydia or Mycoplasma is suspected or confirmed.
This snapshot is a general guide, not a diagnosis or treatment plan. New, severe or worsening signs require veterinary assessment.
About the condition
Sinusitis is inflammation within the avian infraorbital sinus system surrounding the eye and communicating with nasal passages. Bacteria, Mycoplasma, Chlamydia, fungi, foreign material and nutritional epithelial disease can initiate it. In birds, inflammatory material often becomes thick and caseous rather than draining freely, so chronic swelling can persist after surface discharge lessens.
Signs include unilateral or bilateral swelling below or around the eye, conjunctivitis, nasal discharge, sneezing, blocked nostrils, facial pain, reduced appetite and noisy breathing. Chronic pressure can deform tissues or damage the eye. Cockatiels with Mycoplasma may develop recurring disease, while hypovitaminosis A alters sinus epithelium and encourages secondary infection.
“Sinus infection” does not identify the cause. A mass, dental or beak lesion, pox, trauma and choanal foreign body can mimic swelling. Superficial discharge culture may grow contaminants and miss organisms sealed inside caseous material. Repeated antibiotic drops rarely penetrate an organised plug.
Prognosis is favourable when drainage, organism and underlying cause are addressed before chronic scarring. Fungal granulomas and neoplasia carry a more guarded outlook. The condition may be contagious when caused by Chlamydia or Mycoplasma, but many cases arise from opportunists in one nutritionally compromised bird. Prevention uses complete nutrition, clean low-dust air, quarantine and prompt investigation of recurrent discharge rather than long-term empirical medication. Inflammation within infraorbital sinuses causes facial swelling, nasal discharge, sneezing or conjunctival irritation. Bacteria are common, but chlamydiosis, mycoplasma, fungi, vitamin A deficiency, foreign bodies and dental or beak abnormalities may contribute. Thick avian exudate often becomes caseous and cannot drain through narrow openings. Chronic pressure may deform surrounding tissues or extend toward the eye. The swollen area can contain solid inflammatory material rather than freely drainable fluid, explaining why recurrence is common when only surface discharge is treated.
Screening & Early Detection
Assess facial symmetry, nares, choanal papillae, oral cavity, eyes and respiratory effort. Record diet, flock disease, recurrent episodes and prior drugs. Transillumination, radiographs or CT define sinus filling, bone change, mass and lower respiratory extension.
Flush or aspirate the affected sinus to obtain deep cytology, culture and susceptibility; superficial swabs are less representative. PCR is used when Mycoplasma or Chlamydia is suspected. Endoscopy or biopsy investigates fungal plaque, tumour or nonresponsive disease. Vitamin A status is assessed through diet and epithelial findings rather than assumed from every case.
A dyspnoeic or severely swollen bird is stabilised before restraint. Monitor gram weight, eye function and nostril patency. Recurrent unilateral disease demands imaging for an anatomic obstruction. Contacts are screened when a transmissible organism is identified, not solely because one bird has facial swelling. The oral cavity, choana, nares and eyes are examined together. Imaging defines sinus extent and possible bone involvement, while a deep aspirate or flush sample provides cytology and culture. Superficial discharge can be contaminated and may not identify the primary pathogen.
Treatment & Management
Thick caseous material is flushed or removed under appropriate sedation or anaesthesia; medication alone often cannot penetrate it. Systemic and sometimes local antimicrobials are chosen from cytology, culture or targeted PCR. Fungal disease requires antifungal therapy and frequently debridement, while a foreign body or mass needs direct removal or surgery.
Oxygen, fluids, analgesia and nutritional support stabilise severe cases. Correct vitamin A deficiency gradually and improve ventilation and dust control. Eye surface disease and lower respiratory extension receive separate treatment. Repeated forceful home flushing can aspirate material or damage the eye and is avoided.
Recheck sinus filling, culture response and weight through the full course. A return of discharge after brief improvement suggests retained caseous debris, resistance, Mycoplasma, fungal infection or structural disease. Treat exposed birds only under an organism-specific collection plan. Prognosis declines with bony destruction, chronic scarring or invasive fungus, but many bacterial cases resolve when drainage and drug selection are both adequate. Caseous material may need flushing or surgical access because antibiotics alone cannot penetrate an obstructed sinus. Medication follows cytology and culture, with analgesia and fluid support as needed. Vitamin A status, air quality, foreign material and anatomic obstruction are addressed to reduce recurrence.
Breeds or species affected
Adelaide Rosella
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Bar-shouldered Dove
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Blue-faced Parrot Finch
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Bourke's Parrot
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Brown Quail
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Budgerigar
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Cockatiel
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Common Bronzewing
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Crested Pigeon
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Diamond Dove
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Eastern Rosella
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Elegant Parrot
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Emerald Dove
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Galah
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Gouldian Finch
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Hooded Parrot
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King Quail
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Little Button-quail
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Little Corella
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Long-billed Corella
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Musk Lorikeet
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Painted Button-quail
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Painted Finch
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Pale-headed Rosella
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Peaceful Dove
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Port Lincoln Parrot
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Princess Parrot
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Rainbow Lorikeet
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Red-capped Parrot
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Red-collared Lorikeet
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Red-rumped Parrot
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Scaly-breasted Lorikeet
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Scarlet-chested Parrot
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Star Finch
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Stubble Quail
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Sulphur-crested Cockatoo
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Twenty-eight Parrot
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Western Corella
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Western Rosella
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Yellow Rosella
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Zebra Finch
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Canary
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Society Finch
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Domestic Pigeon
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Indian Ringneck Parakeet
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Alexandrine Parakeet
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Peach-faced Lovebird
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Fischer's Lovebird
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Sun Conure
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Jenday Conure
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