My wrist hurts when using it to push myself up or even push a shopping cart. no idea why. what do i do?

Wrist pain: 20 year old lady with a question about wrist pain. Wrist strain/sprain and pain can come on suddenly. I recommend you visit your physician who can perform a physical exam. In the meantime, it is a great idea to get a wrist splint from the drugstore and wear it to immobilize and protect your wrist. You can also use RICE- Rest, Ice, Compression with an ace bandage, Elevate. Good luck.