Reptiles are captivating pets that can thrive for many years with proper care, but they are also sensitive animals that often hide symptoms of illness. As a reptile owner, understanding the common reptile health issues can help you take early action and create an environment that prevents problems before they start.
In this post, we’ll highlight the most frequent illnesses seen in pet reptiles and provide preventive measures you can take to keep your cold-blooded companion healthy and happy.


🦎 1. Metabolic Bone Disease (MBD)
One of the most common reptile health issues, metabolic bone disease is caused by calcium deficiency, poor UVB exposure, or an imbalanced calcium-to-phosphorus ratio in the diet. MBD leads to soft bones, tremors, deformities, and even death if untreated.
Prevention Tip: Always provide high-quality UVB lighting, dust insects with calcium supplements, and ensure your reptile has a diet appropriate for its species.Learn more about MBD and UVB requirements from VCA Animal Hospitals.
🐢 2. Respiratory Infections
Respiratory infections are another of the common reptile health issues, especially in reptiles exposed to low temperatures or poor humidity control. Signs include wheezing, mucus around the nose or mouth, and open-mouth breathing.
Prevention Tip: Maintain proper temperature gradients and humidity levels. Ensure the enclosure is free of drafts and cleaned regularly.AVMA’s pet care guidelines offer general health care best practices.
🐍 3. Parasites
Internal and external parasites, including mites and worms, can quickly lead to weight loss, lethargy, or digestive issues. Parasites are one of the most overlooked yet common reptile health issues in captive environments.
Prevention Tip: Quarantine new reptiles before introducing them to others. Keep enclosures clean, and consult a vet for regular fecal exams.PetMD provides detailed parasite prevention tips for reptiles.
🦖 4. Mouth Rot (Infectious Stomatitis)
Mouth rot occurs when bacteria infect the soft tissues in the mouth, leading to swelling, pus, and loss of appetite. It often develops due to stress, poor hygiene, or improper diet.
Prevention Tip: Maintain a clean habitat and reduce stressors like overhandling or poor nutrition. Early vet care is essential to stop the infection.The Association of Reptile and Amphibian Veterinarians (ARAV) can help you find a vet familiar with reptile-specific illnesses.
🐊 5. Retained Shed (Dysecdysis)
Improper shedding is one of the common reptile health issues seen in snakes and lizards. It often occurs due to low humidity or dehydration. Retained skin on toes or tails can lead to circulation problems and infections.
Prevention Tip: Provide a proper humidity gradient and a shedding box if necessary. Soak your reptile or use a damp hide to assist in the shedding process.
⚠️ When to See a Vet
Many common reptile health issues show subtle symptoms. If you notice your reptile becoming lethargic, refusing food, or behaving differently, it’s important to act quickly. Reptiles often decline rapidly once symptoms appear.
Use the ARAV vet locator to find an experienced exotic vet near you.
🧪 General Prevention Tips
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Use digital thermometers and hygrometers to monitor conditions
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Clean the enclosure regularly with reptile-safe disinfectants
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Quarantine new animals before cohabitating
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Offer species-specific diets and supplementation
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Limit handling if your reptile shows signs of stress
Following these steps will help you avoid the most common reptile health issues and extend the life of your pet.
🐢 Final Thoughts
By understanding the common reptile health issues, you become a more responsible and proactive pet owner. Prevention is always more effective and less stressful than treatment. Stay informed, keep your enclosures optimal, and build a relationship with a knowledgeable reptile vet.
Explore our reptile care guides and shop trusted supplies to keep your pet healthy for years to come.