When a patient with mild-to-moderate BPH does not respond to pharmacotherapy with α1-blockers or 5α-reductase inhibitors, what can be inferred? In addition to diabetes and hypertension, does this...

When a patient with mild-to-moderate BPH does not respond to pharmacotherapy with α1-blockers or 5α-reductase inhibitors, what can be inferred?

In addition to diabetes and hypertension, does this patient have any other risk factors for erectile dysfunction?