American Heart Association

Treating high blood pressure, also called HBP or hypertension, and keeping your blood pressure low is your best plan for lifelong vascular health.
How does high blood pressure cause erectile dysfunction?

HBP damages arteries.
There are two root causes of erectile dysfunction (ED): psychological and medical. High blood pressure is a contributing medical factor that leads to ED. HBP damages the entire vascular system.

Adequate blood flow is necessary for erection.
Because effective blood flow through the arteries and veins is essential to achieve and sustain an erection, any problem that impairs blood flow can cause ED. A number of medical causes associated with erectile dysfunction are problems with the arterial system.

Although many men resist seeking treatment for erectile dysfunction, those who do may discover an underlying medical problem, such as hardening of the arteries or untreated diabetes.

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