How to say "pathology" in Japanese

• 病理びょうりCommon
  nounThe science of disease — the medical discipline studying causes and nature of disease, as in a hospital pathology department. This is the usual word when 'pathology' names the field or its findings.
• 病状びょうじょうCommon
  nounCovers the secondary sense 'pathology' in the sense of a patient's condition or how a disease presents. When English 'pathology' means the state of illness rather than the science, 病状 is what you want.
  その患者かんじゃは日ひごとに病状びょうじょうが悪化あっかしている。↗

  The patient is getting worse and worse day by day.
• 病態びょうたいCommon
  nounMeans a pathological state of the body, often in technical medical description of disease mechanisms. As a rendering of 'pathology' it is narrower and more clinical than 病理.

Use 病理 for pathology as a medical science or discipline; 病状 for the state or condition of a disease; 病態 for a pathological state viewed clinically.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• 病理びょうりpathology
• 病状びょうじょうcondition of a patient
• 病理学びょうりがくpathology
• 病態びょうたいpathological state