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What does "stagnation in the prostate" as described as a clinical symptom in serious evidence-based medicine mean? Or is this just a "pop-culture and mass-media" buzzword?

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You can search using operators "site:gov" or "site:edu" and find texts, such as this one from PubMed:

Sexual behaviors represent potential modifiable risk factors and may influence prostate cancer development through a variety of specific mechanisms. One biological mechanism involves prostatic accumulation of potentially carcinogenic secretions, which may create more opportunity for prostate cancer development, sometimes referred to as the prostate stagnation hypothesis.

The term "blood stagnation" is not related to prostate stagnation hypothesis and is mentioned as a problem after prostate cancer surgery, for example in this article about acupuncture treatment after prostate surgery.

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  • Thank you. I had seem this. Exactly after this I have decided to ask that question. Am I right that this confirms that "prostate stagnation" is not a clinical symptom description, but just some kind of mental construct?
    – Roman Pokrovskij
    Nov 22, 2018 at 11:31
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    It's a hypothesis that suggests a possible risk factor for prostate cancer. It's not a symptom (something what you experience as a feeling or own observation) or a sign (what a doctor can find during an examination). It's a proposed mechanism that has not yet been proven so far, but may or may not be in the future. New hypotheses (this one is several decades old, though) often comes with new terms that at the time sound "constructed" but later become widely accepted, such as irritable bowel syndrome, for example.
    – Jan
    Nov 22, 2018 at 11:45
  • newscientist.com/article/… also talks about this
    – Chris Rogers
    Nov 22, 2018 at 12:06
  • Some pop medicine articles talk about blood stagnation others about prostate secret stagnation. I would like to ask authors of ncbi.nlm.nih.gov/pmc/articles/PMC5040619 why you need those weakly defined terms? and why it is not enough to stay just with "ejaculation frequencies"? What I do not understand there? Symptom defined through statistics is common place now?
    – Roman Pokrovskij
    Nov 22, 2018 at 13:42
  • I added a link to an article that mentions blood stagnation, which is not related to prostate stagnation hypothesis. Scientists often invent new terms. The term prostate stagnation focuses on the mechanism. It's their business how to name something and you can like it or not.
    – Jan
    Nov 22, 2018 at 13:54

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