Why do my teeth hurt after having a piercing for a week?

Teeth may hurt after getting a piercing due to several reasons, such as the stress and tension in the jaw from the new jewelry, especially if it's in the oral or lip area. Additionally, irritation or inflammation from the piercing can affect nearby nerves, leading to discomfort in the teeth. It's also possible that the piercing is causing you to unconsciously clench your teeth or grind them, which can exacerbate the pain. If the pain persists, it's advisable to consult a healthcare professional.