Additionally, they don't have the benefit of regular medical care. Life expectancy the average lifespan of a domestic african pygmy hedgehog is unknown, but it appears to be between two and six years. Hedgy Baby Animals Hedgehog Hamster Annual veterinary visits are very helpful to ensure a healthy hedgehog. Pet hedgehog life expectancy . For pet hedgehogs, life expectancy differs significantly from one hedgehog to the other. The average life expectancy of a hedgehog is around 3 to 7 years for those that are domesticated as pets and less for those that live in the wild. The thing is in the wild hedgehogs are exposed to several threats including, predators, harsh environment, lack of resources of food, etc. As mentioned above, an average pet hedgehog can live for up to 5 years. A hedgehog that is properly taken care of can live for five years. To help it reach this age, you should treat it properly. If properly taken care of, a pet hedgehog lives a. Pet hedgehog...