Inclusion Criteria:  After booking for surgery the trial participants will be informed orally about the study and written material will be given by a doctor or nurse form the study group. If the trial participant accept to enter the study, written informed consent will be obtained. The trial participant will be informed that they can withdraw the informed consent at any time and the treatment will be according to the guidelines of the department.  Exclusion Criteria:  Macroscopic hematuria Pregnant or breast-feeding women Expected poor compliance Persons < 18 years Persons who do not read or understand Danish Dementia