Radiofrequency fields emitted from mobile and cordless phones were in May 2011 evaluated to be ’possibly’ carcinogenic to humans, Group 2B, by IARC. This has had little effect on precaution. Instead incidence data on brain tumour from the Swedish Cancer Register have been used to dismiss the increased risk. In this study we show that these data are not reliable. Instead there is an increasing rate of brain tumours in Sweden. Using the Swedish National Inpatient we show in this study that the rate of brain tumours in Sweden increased since 2007. This increase was seen from 2008 in the Causes of Death Register. The increasing rates may be caused by use of mobile and cordless phones, see http://www.mdpi.com/1660-4601/12/4/3793.