The goal of this clinical trial is to evaluate the effect of pelvic floor muscle exercises on primary post-micturition dribbling (PMD) in male patients aged 18 to 40 years. The main questions it aims to answer are:

1. Does pelvic floor muscle training reduce the severity and frequency of PMD as measured by the Hallym Post-Micturition Dribble Questionnaire (HPMDQ)?
2. Does pelvic floor muscle training reduce the amount of post-void residual urine as measured by a post-voiding pad test?

Researchers will compare patients undergoing pelvic floor muscle training (Group A) with those performing non-targeted exercises (Group B) to see if targeted pelvic floor training is more effective in managing PMD symptoms and reducing urine leakage.

Participants will:

• Undergo random assignment to either pelvic floor muscle training or non-targeted exercise for 12 weeks
• Complete baseline and follow-up assessments including:
• Medical history and physical exam
• Urine analysis and post-void residual measurement
• International Prostate Symptom Score (IPSS)
• Post-voiding pad test
• Hallym Post-Micturition Dribble Questionnaire (HPMDQ)

Inclusion Criteria:

• Primary post micturition dribbling

Exclusion Criteria:

• Patients with secondary post micturition dribbling (BPH, urethral stricture, urethral diverticulum).
• Patients with urethral or penile malformations, neurological or chronic major systemic disease.