Blocked tear duct: the constantly watering eye
Last updated September 3, 2026.
A blocked tear duct (the nasolacrimal duct obstruction) is the blockage of the tear-drainage channel from the eye to the nose: the tears, unable to drain, spill over (the constantly watering eye), often with the sticky discharge and the crusting. It is commonest in the newborns (the underdeveloped duct, mostly opening on its own by the first birthday) and in the older adults (the age-narrowed duct), and the treatments range from the simple massage to the surgery.
What does it look like?
In the babies: the one eye (sometimes both) watering constantly from the first weeks, the tears pooling and spilling onto the cheek, the sticky yellowish discharge (the lashes matted on the waking), and the skin irritation around the eye: the baby otherwise well, the eye itself not red. In the adults: the persistent watering (the worse in the wind-and-cold), the discharge, and sometimes the infected kind: the painful red swelling at the inner-corner of the eye (the dacryocystitis: the infection of the trapped tears).
Why does it happen?
In the babies: the membrane at the duct's lower end simply has not opened yet (the developmental timing, nobody's fault, the 5-to-20% of the newborns). In the adults: the age-related narrowing, the previous inflammation-or-infection, the nose-or-sinus problems, the facial injuries, and occasionally the growths (which is why the one-sided adult blockage with the blood-stained discharge gets the thorough check).
How is it treated?
- The babies: the watch-and-massage: the about-90% open on their own by the 12 months, helped by the Crigler massage (the firm downward strokes along the nose-side of the eye: the taught technique, the several times daily) and the cleaning of the discharge.
- The probing if it persists: the beyond-12-months kind gets the duct probing (the quick procedure, the high success).
- The adults: the cause-dependent: the syringing-and-probing, the stents, or the DCR surgery (the dacryocystorhinostomy: the new drainage channel created) for the persistent kind.
- The infections: the dacryocystitis (the red, painful, swollen inner-corner) gets the antibiotics promptly, then the duct addressed once it settles.
When does it need the prompt care?
The prompt review for: the red, painful, swollen inner-corner (the infection), the fever with it, the vision changes, or the adult one-sided blockage with the blood-stained discharge or the nosebleeds. Pymander's escalation routing is built and tested specifically for this class of decision; see the safety architecture working paper.
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Common questions
Will my baby need surgery?
Statistically, no: the about-90% of the newborn blocked ducts open on their own by the 12 months (the membrane at the duct's end simply finishes developing), and the consistent massage improves those odds. The remaining kind gets the probing (the minutes-long procedure, usually under the brief general anesthetic, with the high success rate), and only the rare persistent case needs more. The surgery is the plan-B, not the default.
Am I doing the massage right?
The technique that matters: the clean hands, the finger placed at the inner-corner of the eye (the duct sac lives there), the firm downward strokes along the side of the nose (the 5-to-10 strokes, the several times daily), firm enough to empty the sac (the small gunk-expression is the sign it is working). The doctor or the nurse can watch your technique once and correct it: the too-gentle stroking is the commonest error.
Is the yellow gunk an infection?
Usually not: the trapped tears stagnate and the sticky yellowish discharge is the normal consequence of the blockage (not the true infection), cleared with the cleaning. The true infection looks different: the inner-corner swelling that is red, hot, and painful (the dacryocystitis), the fever, or the white-of-the-eye reddening: those get the prompt review, as the infections near the eye are not the home-remedy kind.
Why does the wind make an adult's blocked duct water more?
The supply-and-drainage mismatch: the wind and the cold drive the tear production up (the protective reflex), and the narrowed duct cannot drain the surplus, so the overflow spills. It is the same reason the watering worsens outdoors generally, and it is the nuisance symptom, not the danger sign: the significance of the adult blockage is the comfort plus the infection risk, not the vision.
I am an adult with one constantly watering eye. Should I be checked?
Yes: the adult-onset blockage deserves the examination (the causes differ from the baby's: the age-narrowing, the sinus problems, the previous injuries, and rarely the growths), and the one-sided blockage with the blood-stained discharge or the nosebleeds gets the thorough workup promptly. The common case is the benign age-narrowing, treatable with the probing-or-surgery if it bothers you enough.
What is the surgery, if it comes to it?
For the babies: the probing (the fine wire passed through the duct, opening the membrane: the minutes, the high success). For the adults: the DCR (the dacryocystorhinostomy: the new channel created from the tear sac into the nose, the day-case surgery with the strong track record) for the kind that warrants it. Both are the established, routine procedures: the scary-sounding names, the mundane realities.