Anne Truong MDMen's Sexual Health Doctor

Lost Morning Wood? It Could Be Low Testosterone

1 Oct 2026 · 1 min

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In this segment Dr. Anne Truong MD explains that the loss of morning erections is not merely a localized tissue issue but a sign that core physiological systems, particularly hormonal pathways, are under strain. She references a landmark European male aging study that identified a reliable symptom cluster—decreased libido, mild erectile dysfunction, and loss of morning erections—as a strong indicator of low testosterone. Consequently, a decline in morning erections markedly raises the probability of testosterone deficiency, representing one half of the broader clinical picture.

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To stop having morning erections is not an isolated malfunction of the tissue itself. It means one or more of those core systems that I just mentioned is under strain. So let's talk about hormones. In a landmark European male aging study, researchers analyzed dozens of symptoms of low testosterone. They discovered 3 symptoms reliably clustered together to signal low testosterone, decreased libido, mild ED, and loss of morning erection. So if morning erection drop off, it substantially raises the probability of testosterone deficiency. And that's only half the picture.