Different laboratories in China have different descriptions of the forms, terms and results of the visible components in urine. It is urgent to standardize the naming and reporting of the visible components in urine. The experts organized by the Hematology and Humoral Science Group of the Laboratory Society of Chinese Medical Association wrote the expert consensus on the basis of referring to relevant literatures at home and abroad, after nearly 2 years of repeated discussions and revisions, and after soliciting the opinions of clinicians and front-line laboratory personnel. This consensus summarizes the visible components such as red blood cells, white blood cells, epithelial cells, tubular types, crystals, pathogens, etc. that can be seen under the microscope in urine under physiological and pathological conditions. This consensus also gives suggestions on morphological names which are widely used and practical in a large number of urine test reports and in domestic and foreign peer exchanges are put forward. It is suggested that stratified report or diagnosis and descriptive diagnosis should be made by examiners when the quantity and type of abnormal urine visible components are found in urine examination. The consensus describes the cell, casts, crystal and pathogen morphology in urine, and hints the key points of identification, source and mechanism, significance and application.

Urine formed element; Test; Name and term; Result report; Expert consensus