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What causes tear duct blockage?

Causes of tear duct blockage include the following:

  • aging (most common cause)
  • infection (pink eye)
  • radiation
  • previous surgery near the tear duct and scarring
  • cancer on the tear duct
  • Taxotere and other chemotherapy agents
  • radioactive iodine treatment

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.