What can BPH lead to in terms of urinary symptoms?

Benign prostatic hyperplasia (BPH) is a common condition in older men where the prostate gland enlarges, leading to various urinary symptoms. One of the primary effects of BPH is the obstruction of the urethra due to the enlarged prostate. This obstruction can lead to an increase in urinary frequency as the bladder may not fully empty, which causes a person to urinate more often to relieve the sensation of urgency.

Patients might experience other related symptoms such as urgency, weak urine flow, or difficulty starting and stopping urination, but increased frequency of urination is one of the most characteristic symptoms of BPH. Understanding the mechanism behind BPH helps clarify its urinary manifestations, particularly how the obstruction leads to these frequent urges to urinate.

The other choices do not directly relate to the typical urinary symptoms caused by BPH. Decreased urine output usually is not a primary symptom of this condition and rather reflects other urinary pathologies. Nausea is also not specifically associated with BPH and suggests more systemic or gastrointestinal issues. The option indicating "None of the above" does not apply since increased frequency is indeed a well-recognized symptom of BPH.