Credit risk is one of the main risks faced by a bank. This kind of risk is generated by the crediting activity of the clients. To manage the credit risk, banks should identify the sources of the risk and to monitor their exposures. These activities mean a better knowledge of the existing and potential clients and their financial situations, by implementing new scoring methods. Also, to avoid the credit risk or to reduce losses, the banks could increase the value of guarantees required in regular credit activities, their periodically reassessment and the periodical analysis of the ability of customers to generate cash flows (for corporate clients) and get constant income (for retail customers) to provide repayment of credits. This paper aims to prevent and to analyze several measures of credit risk management and it assume that banks on the Romanian banking market and to identify some indices used for customers analysis.