As above it for causes. In older people a UTI is the most common cause. My dad had it and he was never the same, ultimately cancer killed him in April this year but Sepsis ruined his health to the point he could no longer fight.
Symptoms to others could be confusion/cognitive.
Symptoms you would notice would be basically knowing whats not normal when peeing.
In my Dad's case his prostate was blocking his bladder from emptying, or even feeling the need to pee. This meant he was carrying nearly a litre of urine in his bladder at all times. Obviously thats all waste and at some point an infection got created that got into the bloodstream. Sepsis is bacterial infection in the blood.
Sepsis is initially treated by wideband antibiotics via iv. The hospital should then try to narrow down the bacteria and change to something to kill it only...however they often don't. My Dad had it twice in quick succession because he and the hospital let him out way too early the first time.
In parallel, they found a mass in his liver on the second hospital stay. He would then end up bouncing in and out of hospital for oncology treatment.
A catheter was fitted after the 2nd stay, which largely helped him survive 2 more years. It was never removed because he was too weak for the TURP procedure to fix the prostate as it needs a general anaesthetic.
Long story short, get your prostate checked. Be alert to changes and don't hesitate to get a pee sample tested by the nhs if you think anything is amiss.
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