People aged between 13 and 29 suffered most injuries, which were mostly due to distracted driving, walking, and texting.
Dr. Boris Paskhover, a reconstructive surgeon and the lead author of the new paper, started looking into the statistics after seeing patients with broken jaws or facial wounds who would tell him they fell while staring at their phones and not paying attention to their surroundings.
It added, "Although the disposition of most cases is simple, some injuries bear a risk of long-term complications".
The database reveals there are 2,501 reported cases of mobile phone-related injuries between 1998 and 2017 from these 100 hospitals. "Although mobile telephones were gaining popularity prior to that time point", the authors wrote, "their functions were limited and they were therefore less likely to be major distractions when compared to modern-day smartphones".
The most common injuries were lacerations (26%), followed by bruises and abrasions (25%).
The largest percentage of injuries occurred at home. In 2018, the National Safety Council recorded 2,841 people dying in "distraction-affected" crashes.
It's also likely that cellphone injuries are under-counted, according to Paskhover, since there can be legal ramifications to admitting to texting while driving for example.
Following the arrival of iPhone in 2007 the world has become one very much attached to mobile devices. "I have had a patient who was lying in bed looking at her phone, and it slipped out of her hand, hit her in the face, broke her nose", said Paskhover.
Around 94 per cent of people in Britain now owns a mobile phone, and 95 per cent of people in the USA, so the prevalence of injuries is expected to be broadly similar. "A fall from upright - you can still die from that", he said.
The findings suggest there's a need for public education about the risks of being distracted by cellphones beyond texting and driving, the authors noted.
"As an emergency physician, I have personally taken care of patients that have walked into traffic, fallen in holes and other unsafe situations while on a phone", said Dr. Teresa Murray Amato, chair of emergency medicine at Long Island Jewish, in Forest Hills, N.Y.