Upper Respiratory Infections in Tortoises

Upper respiratory infections (URIs) are one of the most common health problems we see in tortoises. These infections can range from mild to serious, and prompt veterinary attention is important to help your tortoise recover and prevent complications.

Signs of a Respiratory Infection

You may notice one or more of the following signs if your tortoise has a URI:

• Nasal discharge (clear, cloudy, or mucus-like)

• Red, swollen, or watery eyes (conjunctivitis)

• Inflammation inside the mouth or choana (the slit in the roof of the mouth)

• Lethargy (less active than normal)

• Decreased appetite

• Signs of dehydration (sunken eyes, thick saliva)

• Sitting under heat more often than usual (“thermoregulation”)

Causes and Differentials

Several possible causes can lead to upper respiratory disease in tortoises:

• Mycoplasma bacteria(M. agassizii, M. testudinis)

• Other bacterial infections of the nose and sinuses

• Herpes virus

• Heat stress(can mimic some signs of infection)

• Lower respiratory infection (pneumonia):a more serious condition that may cause labored breathing, weakness, or lethargy

Because these different conditions can look very similar, diagnostics are often needed to confirm the cause.

How Is It Diagnosed?

Your veterinarian may recommend:

• PCR testing(tortoise respiratory disease panel) to check for Mycoplasma

• Culture and sensitivity the infection does not improve with initial treatment, to identify the specific bacteria involved

Treatment

Treatment depends on the underlying cause but may include:

• Antibiotics: Enrofloxacin or clarithromycin are commonly used. In some cases, ceftazidime may be recommended if other medications are not effective.

• Choana/sinus flushes: Gentle flushing of the nasal passages with an antibiotic and anti-inflammatory solution to help clear infection.

• Anti-inflammatories: Such as meloxicam to reduce pain and swelling.

• Fluids & hydration: Soaking in shallow warm water baths or fluid therapy to prevent dehydration.

• Assisted feeding: For tortoises not eating, nutritional support with formulas like Critical Care or Emeraid may be needed.

• Vitamin support: B-complex injections may be recommended in anorexic patients.

Prognosis

Most tortoises recover well from upper respiratory infections with proper treatment. However:

• Some cases may be resistant or complicated by other health issues.

• Tortoises with Mycoplasma infections may have recurrent respiratory disease in the future, especially during stressful times (breeding, moving, or seasonal changes).

Follow-Up

A recheck examination is recommended at the end of treatment to ensure the infection has resolved. Tortoises with chronic or recurrent issues may need ongoing monitoring.

If your tortoise shows nasal discharge, lethargy, or changes in appetite, call Tree of Life Exotic Pet Medical Center right away. Early diagnosis and treatment greatly improve recovery.