Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Gout ?
    ### Response:
    Gout is a common, painful form of arthritis. It causes swollen, red, hot and stiff joints.    Gout happens when uric acid builds up in your body. Uric acid comes from the breakdown of substances called purines. Purines are in your body's tissues and in foods, such as liver, dried beans and peas, and anchovies.
    