• Increased levels of protein in the urine.
  Human Phenotype Ontology (HPO)
  The Human Phenotype Ontology Project, 2025
• Presence of excess protein in the urine.
  CRISP Thesaurus
  National Institutes of Health, 2006
• The presence of abnormal amounts of protein in the urine.
  NCI
  U.S. National Cancer Institute, 2021
• The presence of proteins in the urine, an indicator of KIDNEY DISEASES.
  NLM Medical Subject Headings
  U.S. National Library of Medicine, 2025
• A disorder characterized by laboratory test results that indicate the presence of excessive protein in the urine. It is predominantly albumin, but also globulin.
  Common Terminology Criteria for Adverse Events
  U.S. National Institutes of Health, 2021
• Proteinuria is protein, usually albumin, in urine. High concentrations of protein cause frothy or sudsy urine. In many renal disorders, proteinuria occurs with other urinary abnormalities (eg, hematuria). Isolated proteinuria is urinary protein without other symptoms or urinary abnormalities.
  Merck Manuals
  Merck & Co., Inc., 2025
• Normal urinary protein excretion is < 150 mg/24 hour, with majority consisting of secreted proteins such as Tamm-Horsfall protein. Daily albumin excretion in a normal person is < 30 mg.
  Medscape
  WebMD, 2025
• Proteinuria, presence of protein in the urine, usually as albumin. Protein is not normally found in the urine of healthy individuals. When detected, proteinuria may be indicative of illness or underlying disease. However, while proteinuria is a sign of many different conditions and diseases, it...
  Encyclopedia Britannica
  Encyclopedia Britannica, Inc., 2025