Understanding Reptile Shedding (Ecdysis)

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 humidity, temperature, and handling principles here apply across species, including the Crested Gecko, Leopard Gecko, and Ball Python.

The Shedding Process

1. 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.
2. Clearing phase: Eyes return to normal 1-2 days before shedding. Activity often returns briefly.
3. 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

1. Humidity too low
2. No rough surfaces to initiate peeling
3. Nutritional deficiencies
4. Underlying health issues

Solve the humidity and you'll solve 80% of shedding problems. For a deeper look at getting humidity right for one commonly affected species, see our crested gecko humidity guide, or browse the full Geckos care guide category and Snakes care guide category.

Sources & Further Reading