Historical cause of death 1500s-1800s
What did canker mean on a death certificate?
On a death record, canker meant a spreading ulcer or eating sore, in the mouth of a sick child or in flesh generally. In modern terms it usually pointed to gangrenous mouth infection, severe ulceration, or sometimes cancer. Canker rash, confusingly, meant scarlet fever with severe throat symptoms, a separate use worth knowing before you translate. Expect it on records mostly 1500s-1800s.
Also written on records as: water canker, canker of the mouth, eating sore.
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Related terms
Browse the full genealogy records glossary for more occupations, causes of death, and legal terms.
FAQs
What is canker called today?+
Gangrenous mouth infection, severe ulceration, or sometimes cancer, broadly speaking. Doctors of the period diagnosed without laboratory tests, so one label often covered several conditions we would now separate. This page explains historical record language and is not medical advice.
How was canker written on death records?+
Clerks and doctors also wrote water canker, canker of the mouth, and eating sore. Spelling wandered from register to register, so check every variant before you decide a record is missing or wrong.
Where do these definitions come from?+
They are drawn from period dictionaries, government archive glossaries, and standard genealogy references, cross-checked against each other; provenance is documented with the dataset. Inside AncestorIQ, Deep Research reads the record itself and explains terms like this in context, against your ancestor's own document.
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