Anne Truong MDMen's Sexual Health Doctor

90% of ED Is Physical, Not Mental — Here's Why #ErectileDysfunction #ED

16 Sept 2026 · 1 min

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0:37

In this brief explainer, Dr. Anne Truong outlines the multifactorial nature of erectile dysfunction (ED), emphasizing that roughly 90% of cases stem from physical causes while about 10% are psychological. She categorizes the physical contributors into four main groups: impaired blood flow (the most common organic cause), nerve damage, hormonal imbalances, and drug‑ or lifestyle‑induced factors such as certain medications, smoking, vaping, or excessive pornography consumption. The segment serves as a conceptual framework for clinicians and patients to think about ED by first determining whether the issue is physical, then pinpointing which of the four physical mechanisms is responsible.

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ED is multifactorial. Mainly 90% of ED is physical and 10% is psychological, but the physical part is due to blood flow or nerve damage or hormones and drug-induced or lifestyle. Drug-induced meaning the medication you take may be affecting it, like smoking or vaping or porn. So that's how you kind of Think about it. If it is physical, is it blood flow, which is the most common organic causes, or is it nerve damage, or is it hormone or drug-induced?