They say that no patient's urine has ever been found whose smell corresponded to the smell of a healthy person's urine. We say: if urine has no odor, then it indicates a cold nature and its excessive immaturity.
Sometimes, in acute diseases, such urine indicates the extinction of innate warmth.
If the urine has a foul odor and shows signs of maturity, then the cause is jarab and ulcers in the urinary organs.
In the absence of maturity, the fetid odor of urine may be caused by the same diseases or by rotting of the urine itself.
If such urine is released during acute fevers and the smell of urine is not caused by diseases of the urinary organs, then this is a bad sign.
If the urine has a sour smell, then this indicates that, as a result of the action of external heat, decay has occurred in the juices with a cold substance. In the case of acute illness, such urine is a sign of the onset of death, because it indicates the extinction of innate warmth and the mastery of the nature by cold and external warmth.
Urine with a sweetish odor indicates the overpowering power of the blood. An excessive foul odor indicates the presence of bile in the urine, and if the fetid odor is accompanied by a sour odor, then this means that black bile is mixed in the urine.
The prolonged excretion of fetid-smelling urine by healthy people indicates fevers arising from putrefaction, or the shaking out of rotten matter retained in their body, as indicated by the relief experienced after urination.
If a person who has been constantly emitting foul-smelling urine during acute illness suddenly stops emitting it and does not experience relief after emitting it, then this is a sign of a decline in strength.