Affects approximately 50 percent of men between the ages of 51 and 60. It becomes increasingly common as men age, with 90 percent of men at age 85 having this condition.

Symptoms usually are:

Incomplete emptying: bladder feels full even after voiding urine

Increased frequency: need to urinate often

Intermittency: the need to stop and start several times while urinating

Urgency: sensation of needing to urinate right away

Weak stream

Straining: need to push or strain to start urine flow

Nocturia: the need to wake up at night to urinate more than two times

Reference:

Healing the Prostate, Dr. Mark Stengler