Polyuria Polyuria Polyuria () is excessive or an abnormally large production or passage of urine (greater than 2.5 or 3 L over 24 hours in adults). Frequent urination is usually an accompanying symptom. Increased production and passage of urine may also be termed diuresis. Polyuria often appears in conjunction with polydipsia (increased thirst), though it is possible to have one without the other, and the latter may be a cause or an effect. Psychogenic polydipsia may lead to polyuria. The most common cause of polyuria in both adults and children is uncontrolled diabetes mellitus, which causes osmotic diuresis, when glucose levels
Medical literature of medical knowledge was far surpassing the capacity of any single individual to encompass". Since that time, this has been the standard. Examples are: Harrison's "Principal of Internal Medicine" is widely considered the most read textbook of medicine ever. It was able to eclipse Cecil's by changing the organization. Instead of organizing by disease, Tinsley Harrison organized the book by region and symptom, allowing students to learn the myriad causes of a patient's symptom, without first knowing the specific disease. Harrison's is also credited for a strong commitment to linking basic science to clinical medicine. Health-related information is often disseminated