Doctors at Kingston Hospital in Surrey have revealed that the number of children being treated for accidents on a trampoline have been increasing, as parents often ignore the manufacturer's safety advice.
Writing in the Emergency Medicine Journal, they have stressed the need for greater awareness among parents about the dangers.
They say that over 50 per cent of the 131 children treated at the hospital's emergency department last summer had no nets on their trampoline, and no adult supervision.
They add that the commonest injury was a soft tissue sprain followed by fractures, head injury, and cuts.
According to the doctors, most of the children they treated had been playing on the trampoline with other people at the time of their accident.
They revealed that 18 children were operated, and 28 referred to a fracture or ear nose and throat clinic.
They also said that the average age of the children was 8.8 years, and 92 (70 per cent) were boys.
Lead researcher Dr. Dan Harris said that he had been surprised by how significant some of the injuries were.
"It's difficult because I can see lots of trampolines in gardens in the Kingston area and clearly only a small percentage of the children are getting injured but some of those injuries are life-changing fractures which will cause continual joint problems," the BBC quoted him as saying.