Risk management is an active field where applications are reconsidered after each obstacle. Islamic banks are not excluded from this rule, particularly when they operate in a global financial system, in which they are occasionally forced to follow conventional banking rules. Nevertheless, Islamic banks are part of a less-advanced industry and face many challenges when handling risk. In theory, Islamic banks are confronted with two categories of risk: common risks, which are similar to the risks faced by conventional banks and risks specific to Islamic banks, due to their specificities and methods of operation. However, practice does not necessarily reflect this dichotomy. Therefore, the purpose of this paper is to make a compliance study between the theory and practice of Islamic banking risks. More precisely, it will compare all the risks fully recognized by the theory to the risks that are actually managed by the Islamic banks in their activities, using a sample of these institutions. The results of this qualitative approach, demonstrate that practice can be quite different from theory.