• hinterlufer@lemmy.world
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      2 months ago

      For backflow you would need a higher pressure in the small reservoir. You would at best get equal pressure in both reservoirs unless you actively try to squeeze it back in.

      • KillingTimeItself@lemmy.dbzer0.com
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        2 months ago

        that or no pressure differential, and turbulence in the fluid causing possible bacteria and shit to makes its way back in. It’s unlikely, but not impossible.

      • dustyData@lemmy.world
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        2 months ago

        Pressure depends on muscle tension. When you relax, the pressure inside the bladder drops. The prostate sphincter is already relaxed open and the outside pressure temporarily exceeds internal pressure. This leads to backflow and can introduce bacteria into the urethra and bladder. Not fun times ensue.

      • Andrzej@lemmy.myserv.one
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        2 months ago

        I honestly hadn’t given it this much thought lol, but there are muscles and elasticity involved which I imagine has something to do with it? I’m just relaying the advice of doctors tbh!