A narrowing or stricture of the tear duct that restricts the flow of tears, often causing excessive tearing.
From Greek dakryon (tear) + stenosis (narrowing). The medical suffix -stenosis is commonly used to describe abnormal narrowing of ducts or passages throughout the body.
Sometimes tear ducts get scarred and narrowed—like the difference between drinking through a normal straw versus a pinched one. Your tears can't drain properly, so they overflow!
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