Terminal illness
incurable disease unable to be treated that will almost certainly result in the patient's death
Terminal illness or end-stage disease is a disease that cannot be cured, or adequately treated, and typically results in the death of the patient. This term is usually used for progressive diseases such as cancer, rather than fatal injury. In popular use, it indicates a disease that will progress until death with near absolute certainty, regardless of treatment. A patient who has such an illness is a terminally ill patient. There is no standardized life expectancy for a patient to be considered terminal, although it is generally months or less. An illness which will result in premature death, even if that death may be many years away, is a life-limiting illness. An illness which is lifelong but not life-shortening is a chronic condition.
Terminal patients usually have options for disease management after diagnosis; examples may include caregiving, continued treatment, palliative and hospice care, and physician-assisted suicide. Decisions regarding management are made by the patient and their family, although medical professionals may offer recommendations of services available to terminal patients.
Lifestyle after diagnosis varies depending on management decisions and the nature of the disease, and there may be restrictions depending on the condition of the patient.
Begin with the source’s own compact description: “Terminal illness” is incurable disease unable to be treated that will almost certainly result in the patient's death. The dossier treats that line as a proposition to test through Terminal, illness and incurable, not as a finished interpretation.
Why this record matters
The phrase “incurable disease unable to be treated that will almost certainly result in the patient's death” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Aug 15, 2026. The linked authority identifier is Q1364787. The Library of Congress control number is sh85134022. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank.
The absence of detail may reflect summary conventions rather than a lack of surviving documentation. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “Terminal illness”, its source revision and the description used here.
- Expand the search: follow Terminal illness primary sources, Terminal illness archive and Terminal research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Terminal illness”?
- Which institution is responsible for the underlying evidence?
- Which cited source is closest to the event, object or claim?
Search terms from this dossier
This entry incorporates text from “Terminal illness” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.