International prostate symptom score (IPSS) was claimed to be complicated for patients. The aim of this study was to measure differences in IPSS when introduced by a physician vs self-administration. Patients with lower urinary tract symptoms completed two IPSS questionnaires: one self-administrated and the other by a physician 1 week apart. Results with 75 patients in each group suggested that there was no statistically significant difference between patient and physician administration, although the mean scores of patients' administration were higher in both groups. In conclusion, when assessing IPSS before treatment, we found no difference between patient administration and physician administration.