Why won't my boyfriend's penis wont stay hard?

Talk and learn: Even during the most romantic of times, a man's sexual response will come and go -- probably more erratic than your level of excitement. It does not mean he does not care. As you get more experienced with one another's bodies, you'll learn how best to make each other happy. Let things come naturally, and proceed from your caring for one another.

Could be a lot: Erectile function is dependent on multiple systems in our bodies facilitating the dilation of the erectile chambers of the penis, called the corpora cavernosa. This includes an intact central and peripheral nervous system, arteries, and veins. Medications are a cause of impotence. Depression can present as ed too. A patient with ed should see a urologist for a complete workup and exam.