The number of ambulances called to deal with e-scooter accidents nearly doubled between 2020 and 2021.
The emergency services attended 713 accidents in 2021, compared with 392 in 2020, although it is not known how many more scooters were on the road.
NHS Ambulance Trust data also showed a 40% rise in e-scooter riders being taken to A&E in the same period.
The government is considering making e-scooters legal for road use in England next month, after trials across the UK.
The figures cover ambulance callouts for seven trusts in England, Wales and Northern Ireland, and 95% of the injuries were to riders, with the other 5% to pedestrians.
A total of 173 patients were treated at the scene and then taken to A&E in 2021, compared with 124 in 2020.
The Major Trauma Group, which obtained ambulance data from the NHS, wants the government to improve safety standards if it is to go ahead with legalising e-scooters.