OBJECTIVES: To clarify what urinary condition causes post micturition dribble (PMD) in non-elderly healthy men. We focused on men with PMD who do not have PMD every time they void. We clarified what urinary condition associated with PMD in individuals to prevent PMD. MATERIALS AND METHODS: Twenty healthy volunteer men who had experienced PMD were included in the study between 2018 and 2021 using a portable uroflowmeter for 48 hours. They recorded symptoms of PMD and strength of desire to void (none, weak, normal or strong) for each void. We investigated the risk factors of PMD and the correlation between strength of desire to void and PMD or parameters measured by uroflowmeter. RESULTS: The mean age of the volunteer men was 35.9±6.9 years. During the study, 20 volunteers experienced a total of 208 episodes of voiding. Of them, 57 (27%) were associated with PMD. Lower voided volume than usual was a significant risk factor for PMD in univariate analysis (p<
0.01). There was a statistically significant correlation between the strength of the desire to void and the voided volume (p<
0.01). The voiding with none or weak desire to void significantly caused PMD compared to voiding with normal or strong desire to void (36% vs. 21%, p=0.03). CONCLUSIONS: Lower voided volume than usual and voiding with less strength of desire to void are risk factors for PMD. Instructing male patients with PMD to refrain from voiding when the desire to do so is ambiguous can contribute to preventing PMD.