Most common cause of post micturition dribble is weakness of perineal muscles, and is usually manages with bulbar milking after micturition. Other uncommon causes are urethral strictures and retention overflow, which needs to be excluded by a thorough medical examination. Thinning of semen is a vague term not used by professionals. Any seminal abnormality has to be tested with a seminal examination, and appropriate abnormality managed accordingly.