Uroscopy, 1519
Doctor examining a glass vessel containing a sample of a patient's urine. In medieval medicine, uroscopy was an important diagnostic tool, urine having 29 attributes to be observed. From this the physician deduced the supposed levels of a patient's four 'humors' (bodily fluids): blood, yellow bile, black bile and phlegm. Illness was thought to be due to an imbalance in these fluids. It was thought that the imbalance could be redressed by changing the patient's diet, prescribing medicine, by bleeding the patient, or by surgery. Image drawn by Lorenz Fries of Colmar, Germany, in 1519.
Size: 2700px × 3708px
Photo credit: © Photo Researchers / Alamy / Afripics
License: Licensed
Model Released: No
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