23. Trigger Thumb
Trigger thumb occurs when your phone becomes stuck in a bend or makes a popping noise when you straighten it. This condition can be painful and lead to tendon and joint issues. When the sheath around your thumbs tendon becomes so thick the muscle can’t slide freely, trigger thumb develops.
This condition can be caused by a massive amount of texting. Also, holding onto your smartphone very tightly leads to trigger thumb. The best way to prevent this from happening is to limit the use of your smartphone. If you must be on your phone, lay it on a table while you scroll. You can also use your phone’s microphone function to write text messages and emails.