Wild Hedgehog Rehabilitation and Release

How hedgehog rehabilitators care for sick, injured and underweight wild hedgehogs and the evidence guiding their release decisions.

Key Facts

Hedgehogs below 450g in autumn are at risk of dying during hibernation without supplementary feeding and veterinary care
The most common reasons for hedgehog rehabilitation include traffic injuries, lawnmower injuries and underweight juveniles
Hedgehog carers must be licensed for treatment involving controlled drugs but not for general care and supplementary feeding
Release timing and location are critical welfare decisions - releasing underweight animals in autumn or into unfamiliar territory reduces survival
Microchipping hedgehogs before release allows monitoring of post-release movements and survival in rehabilitation cohorts
Intensive care facilities versus experienced foster carers differ in welfare outcomes depending on the hedgehog's specific condition

Welfare Considerations

Hedgehog rehabilitation welfare requires balancing the welfare costs of captive care against the welfare benefits of recovery before release. A hedgehog hospitalised for many weeks in a small enclosure without adequate space, foraging substrate and social environment experiences welfare costs that must be weighed against the survival benefit of recovery. Welfare-conscious rehabilitation minimises the captive period through efficient medical care while providing the environmental enrichment, dietary variety and sensory stimulation that reduce captive stress. Release decisions must prioritise the animal's readiness over the carer's timeline - a hedgehog released underweight or out of season faces acute welfare harm in the wild that undoes the benefit of the captive care period.

What You Can Do

Contact the British Hedgehog Preservation Society or equivalent national organisation when you find a hedgehog out during daylight or appearing distressed
Provide supplementary feeding stations in your garden - this supports hedgehogs that may be marginal weight without requiring full rehabilitation
Support hedgehog rescue organisations with donations of food, bedding and financial support
Volunteer as a hedgehog foster carer after receiving training from an experienced rehabilitator - demand exceeds capacity in most areas
Install wildlife cameras to monitor hedgehog populations in your area and contribute data to citizen science projects
Advocate for your local authority to reduce use of slug pellets on public land and improve road safety measures in known hedgehog hotspots