. >> reporter: tina choi works in digital.he believes it is a sense of sharing a sense of yourself. >> it is about telling a story, telling your viewers and your friends where you are at and what you are doing, how active you are. >> reporter: all of that selfie taking started feeling tingling in her wrist. >> it felt like random sharp pains and it would prevent me from working. >> reporter: she is part of a growing population. >> it is a form of carpal tunnel. what happens is this hyper flexion of the wrist. it is basically the nerve becomes inflamed and angry. >> reporter: dr. harrison says the problem begins when patients hyperflex their wrists. >> right in the moment let's take a picture right now, no time to set up. >> reporter: he taught tina how to hold the phone without too much bend in the wrist. showed her exercises. then do the same movements with a semiclosed wrist. you can try what he calls flappers. and after a few weeks of picture taken at the raider's game. >> could be the team's last home game ever. that's nex

29-year-old tina choy works in digital media production and she loves her selfies. >> it's really aboutgling in her fingers and wrist and later discomfort. after a few months she said it felt like a sharp pain in the corner of her wrist got so bad it prevented her from working and orthopedic surgeon levi harrison is treating her for a condition he calls selfie wrist. >> it's a form of carpel tunnel because what happens is the nerve becomes inflamed and angry. >> reporter: harrison says the problem begins when patients constantly hyperflex their wrist inwards in a rush to capture that perfect angle. >> you're right in the moment. let's take a picture right now, and that's what happens. >> reporter: everybody responds differently and your wrist pain may not be solely caused by taking selfies. sleeping with your flexed wrist can cause wrist pain and so does repetitive movement from typing. dr. harrison showed tina how to hold her phone without too much bend in her wrist, and put her on a regimen of exercises to do every day. >> back around the world. >> reporter: tina's now feeling better,