• An infectious or non-infectious inflammatory process affecting the prostate gland.
  NCI
  U.S. National Cancer Institute, 2021
• An inflammation of the prostate gland, sometimes caused by a bacterial infection, which may result in painful or difficult urination.
  Harvard Dictionary of Health Terms
  Harvard Medical Publishing, 2011
• An inflammatory process affecting the prostate gland.
  NICHD Pediatric Terminology
  U.S. National Cancer Institute, 2021
• Infiltration of inflammatory cells into the parenchyma of PROSTATE. The subtypes are classified by their varied laboratory analysis, clinical presentation and response to treatment.
  NLM Medical Subject Headings
  U.S. National Library of Medicine, 2025
• Inflammation of the prostate gland.
  NCI Dictionary of Cancer Terms
  U.S. National Cancer Institute, 2021
• Inflammation of the prostate.
  CRISP Thesaurus
  National Institutes of Health, 2006
• The presence of inflammation of the prostate.
  Human Phenotype Ontology (HPO)
  The Human Phenotype Ontology Project, 2025
• Prostatitis refers to a disparate group of prostate disorders that manifests with a combination of predominantly irritative or obstructive urinary symptoms and perineal pain. Some cases result from bacterial infection of the prostate gland and others, which are more common, from a poorly understood combination of noninfectious...
  Merck Manuals
  Merck & Co., Inc., 2025
• Prostatitis is an infection or inflammation of the prostate gland that presents as several syndromes with varying clinical features. The term prostatitis is defined as microscopic inflammation of the tissue of the prostate gland and is a diagnosis that spans a broad range of clinical conditions.
  Medscape
  WebMD, 2025
• Prostatitis is swelling and inflammation of the prostate gland, a walnut-sized gland situated directly below the bladder in men. The prostate gland produces fluid (semen) that nourishes and transports sperm.
  Mayo Clinic
  Mayo Foundation for Medical Education and Research, 2025