Proper humidity is critical for reptile health, affecting shedding, respiratory function, and hydration. Many captive reptiles suffer from chronic low humidity that causes long-term health problems.
Reptiles are ectotherms whose physiological processes depend on precise environmental conditions. Humidity affects not just shedding but respiratory health, kidney function, and immune response. Animals kept in chronically incorrect humidity experience repeated dysecdysis which can cause permanent digit loss, suffer respiratory infections that progress to pneumonia if untreated, and face systemic dehydration even when water is available. These are painful, chronic conditions that significantly impact quality of life. Many keepers underestimate humidity requirements because visible signs of distress are subtle until animals are seriously ill.