The Child-Pugh score is largely validated and easy to use. Despite two subjective variables, this score is widely used to predict the survival of patients suffering from cirrhosis. The MELD (Model for End Stage Liver Disease) is a more objective prognostic score, requiring however a calculation software. It is currently used in prioritizing allocation of organs for liver transplantation. The Maddrey score allows identifying the severe forms of alcoholic hepatitis, which can benefit from a corticotherapy to reduce the high short-term mortality.