Case Study vs Case History: Key Differences Explained
A case study is a structured, in-depth exploration of a single subject to test a hypothesis or illustrate a solution. A case history is a chronological record of past events, usually medical or legal, used for reference.
People mix them up because both sound like “stories about a case.” Marketers reach for “study” to sound strategic, while doctors default to “history” for patient files. Same word “case,” different lenses.
Key Differences
Case study: purpose-driven, forward-looking, often published. Case history: backward-looking, fact-driven, usually private. One seeks insight; the other logs what already happened.
Which One Should You Choose?
Writing a business report or classroom assignment? Pick case study. Updating a patient chart or legal dossier? Use case history. Match the term to your intent and audience.
Examples and Daily Life
A startup showcases a client success as a case study on its site. Your dentist pulls up your case history before a check-up. Same word “case,” different rooms.
Can a case history become a case study?
Yes. Once anonymized and analyzed for broader lessons, a case history can be reframed as a case study.
Is “case history” ever used outside medicine or law?
Rarely. Most non-medical fields prefer “background” or “background check” instead.