Which of the following is NOT a common cause of urinary obstruction in men?

The correct choice indicates that menopause is not a common cause of urinary obstruction in men. This is because menopause is a biological process that occurs in women, characterized by the cessation of menstruation and various hormonal changes. In contrast, the other options listed are all conditions that can lead to urinary obstruction in men.

An enlarged prostate, or benign prostatic hyperplasia, is a common condition in aging men that can constrict the urethra, impeding urine flow. Scar tissue from previous surgeries may also restrict the urethral passage, causing obstruction. A urethral stricture, which is a narrowing of the urethra due to injury, inflammation, or infection, can similarly block the urinary tract.

Understanding the differences in male and female physiology and the mechanisms behind urinary obstruction can help clarify why menopause is not a relevant factor for men.