Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) familial Mediterranean fever ?
    ### Response:
    Familial Mediterranean fever is an inherited condition characterized by recurrent episodes of painful inflammation in the abdomen, chest, or joints. These episodes are often accompanied by fever and sometimes a rash or headache. Occasionally inflammation may occur in other parts of the body, such as the heart; the membrane surrounding the brain and spinal cord; and in males, the testicles.
    