Trampolines have sprung up to be the leading cause of injuries for children these school holidays, NSW Ambulance figures show.
Paramedics have responded to 12 trampoline-related triple-zero calls across the state since the school break started on Saturday, which is more than vehicle and bike-related injuries combined.
Patients aged two to 18 have been hurt on trampolines, jumping castles and beds with injuries ranging from a hurt knee to compound leg fractures, dislocated elbows and broken arms.
Separate figures released in March revealed the state ambulance service responded to almost 1800 trampoline-related injuries between 2014 and 2016.
Of those, nearly 900 were children aged under 10.
NSW Ambulance Inspector John Brotherhood on Thursday said parents should be vigilant when their children played on trampolines.
"Many children are injured while jumping with others - the more children on board, the more likely one will fall on another," he said in a statement.
"Also, don't put a trampoline near a fence or other structure or use it as a springboard into a pool."
Insp Brotherhood said he was most concerned by the seven young pedestrians and cyclists who were hit by cars since the holidays began on July 1.
The mild winter weather meant more kids were playing outside, and he implored drivers to keep an eye out.
"It's important to remember that young children in particular sometimes forget to obey the road rules and can behave unpredictably near roadways."
© AAP 2017
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