Final answer:
Approximately 40 percent of men over 50 years old experience BPH, which jumps to 80 percent by age 80.
Step-by-step explanation:
Benign prostatic hyperplasia (BPH) is a common condition as men age. According to the data provided, the percentage of men over 50 years old with BPH is approximately 40 percent. This number increases significantly as men reach older age brackets, with up to 80 percent of men being affected by the time they are over 70 years old.
It is important to understand that BPH can cause a series of lower urinary tract symptoms, which range from the frequent urge to urinate to a weak stream and sensation of incomplete bladder emptying. Treatments for BPH include medication for milder symptoms and surgery for more severe cases.