INTRODUCTIONLaparoscopic donor nephrectomy (LDN) is now a well established method for kidney procurement from living donors. In our centre, LDN is currently offered only to donors suitable for a left nephrectomy. The aim of this study was to investigate the incidence of testicular pain and swelling following LDN.METHODSA total of 25 left-sided LDN male patients were assessed in a prospective structured interview together with a control cohort of 25 male patients who had undergone left-sided open donor nephrectomy (ODN).RESULTSData were collected on testicular pain, swelling, numbness, urinary symptoms and sexual dysfunction from all 50 patients (100% response rate). Of the 25 LDN patients, 11 (44%) experienced ipsilateral testicular pain and/or swelling. In most instances, pain was of immediate onset, mild to moderate in severity, lasted for a few days to several weeks and was associated with testicular swelling (10 of 11 cases). However, testicular pain and/or swelling were not apparent in ODN patients, with only 2 of 25 (8%) experiencing mild testicular pain, 1 of whom also had swelling.CONCLUSIONSTesticular pain and swelling following LDN is a common problem. It is underreported in the literature and should be included in the differential diagnoses of testicular pain and swelling. Further investigation is required to confirm our findings.