What a Tear Sac Infection Looks Like

Added: 2026-05-20

[00:00:00]That swelling near the inner corner of the eye isn't just irritation. It can be an infection called acute dacryocystitis. This happens when the tear drainage system is blocked, so instead of draining into the nose, fluid builds up in the lacrimal sac. That trapped fluid creates the perfect environment for bacteria to grow, which leads to pain, pressure, and infection.

[00:00:16]As it worsens, the sac can fill with pus, which is why you may see discharge when pressure is applied like this. Most cases are treated with antibiotics and warm compresses, but it shouldn't be ignored because infection can spread to surrounding tissues around the eye.