By age 60, approximately what percentage of men have some degree of benign prostatic hyperplasia (BPH)?

1. The prostate normally enlarges again starting around age 25. 2. Abnormal overgrowth, called benign prostatic hyperplasia (BPH), becomes increasingly common with age. 3. The prevalence at age 60 specifically. 4. That figure is 40 percent, rising further to about 80 percent by age 80. 5. 10 percent and 70 percent are both different figures a reader might guess from memory, but neither matches the specific figure given here. 6. So 40 percent is correct for age 60. _Source: OpenStax Anatomy and Physiology (CC BY 4.0), Ch 27 "The Reproductive System", p.1286 §Prostate Gland_