To propose a CKD hotspot to be reviewed in the CKD hotspots series of CKJ, please send an e-mail with the subject “CKD hotspots” to aortiz@fjd.es and also to caroline.vinck@ugent.be, indicating what the proposed hotspot is, its geographical location, why you think this hotspot should be featured and references or epidemiological data supporting the existence of the hotspot.