Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) What I need to know about Cirrhosis ?
    ### Response:
    Cirrhosis* is scarring of the liver. Scar tissue forms because of injury or long-term disease. Scar tissue replaces healthy liver tissue and blocks the normal flow of blood through the liver.
                
A healthy liver
                
- makes proteins  - helps fight infections  - cleans the blood  - helps digest food  - stores a form of sugar that your body uses for energy

    