It's impossible to diagnose illness based on Urine temperature alone.
Urine gets its temperature from blood and body temperature.
And, the longer you hold yourself from peeing, the colder your urine gets.
This is due to the time the fluid stays in the bladder, away from the kidneys.
Hot urine could only mean that you're ingesting lots of fluids.
When we are at the bar, quckly gushing beers down, our urine is formed very quick as well, and our bladder gets filled up faster, then the urine doesn't stay too long in the bladder, so the urine tends to be hotter, than when we're not drinking enough water and the urine is formed drop by drop, and collected in a longer time span, tending to be cooler when our bladder gets full enough to send the 'go' signal...
Try it, and test yourself by drinking one glass of water every 5 mins and you'll get a hot pee right away...
...and the opposite happens with the first pee of the day, right after waking up, as the urine has been collected through the night...
Of course, you might, as well, have an infection, regardless of urine temperature..
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