How UV-B light provision is essential for reptile health and welfare, and how inadequate lighting causes preventable disease.
Metabolic bone disease from inadequate UV-B provision is one of the most common preventable diseases in captive reptiles and represents a significant welfare failure. The suffering caused by MBD - progressive bone weakening, pathological fractures, and neurological signs - is severe and long-lasting. The disease develops slowly, meaning owners may not recognize the problem until advanced stages. The solution is straightforward: appropriate UV-B lighting matched to the species' Ferguson Zone requirements, positioned correctly and replaced before degradation. Reptile welfare education about UV-B requirements is fundamental to responsible keeping, and its absence in retail environments where reptiles are sold is a systemic failure.