Understanding Reptile Shedding (Ecdysis)
Shedding is one of the most misunderstood aspects of reptile care. Here's what's actually happening, what's normal, and when you need to step in.
Understanding Reptile Shedding (Ecdysis)
Reptiles shed their skin (a process called ecdysis) to grow and to remove parasites and old, damaged skin. Understanding this process will help you support your animal and catch problems early.
The Shedding Process
- Pre-shed (dyscratic phase): Eyes turn blue/opaque (in snakes), colors become dull, skin looks dry. Your animal may refuse food and hide more. This phase lasts 5-14 days.
- Clearing phase: Eyes return to normal 1–2 days before shedding. Activity often returns briefly.
- Active shed: The animal rubs against surfaces to start the peel, then crawls out of its skin.
Supporting a Healthy Shed
- Humidity: The single most important factor. Raise humidity to the high end of your species' range during shed.
- Rough surfaces: Cork bark, slate, and branches give your animal something to rub against to start the peel.
- Soak (if needed): A 15-20 minute warm water soak can help loosen stuck shed. Use a shallow dish and supervise.
Stuck Shed (Dysecdysis)
Retained shed most commonly affects:
- Toes (geckos, lizards): Can constrict blood flow. Gently remove with a damp cotton swab after soaking.
- Eye caps (snakes): Never try to remove these yourself. See a vet.
- Tail tip: Especially in leopard geckos. Retained rings can cause necrosis.
Root Causes of Dysecdysis
- Humidity too low
- No rough surfaces to initiate peeling
- Nutritional deficiencies
- Underlying health issues
Solve the humidity and you'll solve 80% of shedding problems.
Sources & Further Reading
Sources & Further Reading
- Arcadia Reptile and Zoo Med husbandry resources
- Exotic veterinary medicine references on ecdysis
- Published research on reptile skin and shedding physiology
Written by Mike
Mike is the founder of Beastly Facts and a lifelong reptile enthusiast. He shares his home with Dex, a bearded dragon with strong opinions about crickets and basking schedules. Mike writes in-depth care guides, animal facts, and the occasional short story about life with exotic pets.
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