Which disorder of the male reproductive system is characterized by the enlargement of the prostate gland due to old age?
Benign Prostatic Hypertrophy (BPH)
Prostate Cancer
Sterility
Inguinal Hernia
BPH as the enlargement of the prostate gland due to old age, which can lead to symptoms such as frequent urination and painful micturition.
Option 1 is the correct answer.