---
title: Dacryocystitis
description: "[Dacryocystitis is infection of the tear sac](https://bluefinvision.com/blog/what-is-dacryocystitis/), usually caused by blockage of the tear duct. It leads to a painful, swollen lump between the eye and the side of the nose. ## Symptoms and causes When the drainage passage is…"
url: "https://bluefinvision.com/knowledge-base/topics/conditions-diseases/dacryocystitis/"
updated: "2026-01-22"
category: "Conditions & Diseases"
---

# Dacryocystitis

[Dacryocystitis is infection of the tear sac](https://bluefinvision.com/blog/what-is-dacryocystitis/), usually caused by blockage of the tear duct. It leads to a painful, swollen lump between the eye and the side of the nose.

## Symptoms and causes

When the drainage passage is blocked, tears collect in the sac and become infected. Bacteria then multiply, causing redness, tenderness, and discharge.

- Pain and swelling at the inner corner of the lower eyelid are typical.
- Pressing the area may release pus through the inner corner of the eye.
- Fever and feeling unwell can occur in more severe cases.
- Chronic blockages may cause repeated mild episodes.
- Newborns can also develop dacryocystitis due to congenital duct obstruction.

## Treatment and prevention

Dacryocystitis needs prompt medical treatment to prevent spread of infection. Long-term relief usually requires addressing the underlying blockage.

- Antibiotics and warm compresses treat the acute infection.
- In severe cases, hospital admission for intravenous antibiotics may be needed.
- Once settled, dacryocystorhinostomy surgery often restores permanent drainage.
- Parents of affected babies are shown massage techniques and when to seek help.
- Early treatment reduces the risk of abscess or spread to nearby tissues.