Below is an instruction from Human. Write a response.
    ### Instruction:
    What to do for Solitary Kidney ?
    ### Response:
    - When a person has only one kidney or one working kidney, this kidney is called a solitary kidney. The three main causes of a solitary kidney are birth defects, surgical removal of a kidney, and kidney donation.  - In general, people with a solitary kidney lead full, healthy lives.
    