What causes a large prostate?

A large prostate, or benign prostatic hyperplasia (BPH), is primarily caused by hormonal changes as men age, particularly the increase in estrogen and the influence of dihydrotestosterone (DHT) on prostate tissue. Other factors may include genetics and lifestyle choices such as diet and exercise. While the exact cause is not fully understood, these factors contribute to the growth of prostate cells, leading to an enlarged prostate.