Yes, Does Dehydration Cause ED and potentially contribute to erectile dysfunction (ED). When the body is dehydrated, it can lead to reduced blood volume and circulation, which may affect blood flow to the penis. Dehydration can also result in fatigue, stress, and hormonal imbalances, all of which can impact sexual performance. Staying well-hydrated is important for overall health, including sexual function. If you're experiencing ED, it’s a good idea to consult a healthcare professional for a comprehensive evaluation and personalized advice.