Replacement of disposable by reusable care materiel is a mandatory question in sustainability management in nephrology. Recommandations have already been edited for individual protection in the operating room and the DGOS (Direction générale de l'offre de soins) will soon launch an experimentation in the reuse of some catheters and endoscopes. The literature is unanimous on the advantage, in the fields studied, of reuse over disposable material regarding green house gaz emissions. However, this advantage can be lost when considering water consumption that partly results from washing and sterilization activities. Our article aims to encourage nephrologists to start applying some measures in their clinical practice and be aware of the coming innovations.