Hedgehogs can suffer from balloon syndrome, a rare condition in which gas is trapped under the skin as a result of injury or infection and which causes the animal to inflate; in 2017 the BBC reported a case in which a male hedgehog was "almost twice its natural size, literally blown up like a beach ball with incredibly taut skin". The head vet at Stapeley's Wildlife Hospital, Bev Panto, said, "In my career I have seen three or four of these cases and they are very strange every time and quite shocking ... When you first see them they appear to be very big hedgehogs but when you pick them up they feel so light because they are mostly air". She added that the condition was unique to hedgehogs because they have significant space under their skin as a result of their ability to curl up. A similar case had been reported in 2013. The British Hedgehog Preservation Society advises that: