Wrist pain, what could it be, what caused it, symptoms and treatment?

It's more like, when you look at your wrist with your left palm, facing towards you, you'll see two tendons in the middle, it's immediately to the right of it. It hurts most when i push something or just by rotating my wrist/hand. I do usual household chores like, cleaning, washing dishes, and I do play piano or xbox whenever i'm bored. what could it possibly be? what could've caused it? what are the common symptoms so it can be treated if it happens again in the future? what are the common treatment/s for it and/or what can i do to prevent it or make it feels better atleast?