Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Foreign Bodies ?
    ### Response:
    If you've ever gotten a splinter or had sand in your eye, you've had experience with a foreign body. A foreign body is something that is stuck inside you but isn't supposed to be there. You may inhale or swallow a foreign body, or you may get one from an injury to almost any part of your body.
    