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Subconjunctival Hemorrhage

Bright red blood patch beneath the conjunctiva caused by rupture of small subconjunctival vessels with sudden onset and benign self-resolving course.

Written by: Saygı Hospital Health Guide Editorial Board
Last updated:

This content has been compiled by the Saygı Hospital Health Guide Editorial Board and is periodically reviewed by a specialist physician.

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This content is for informational purposes only and does not constitute medical advice. You can book an appointment at our Göz Hastalıkları department. Book Appointment →

What is Subconjunctival Hemorrhage?

Subconjunctival hemorrhage refers to extravasation of blood from a ruptured small conjunctival or episcleral vessel into the loose subconjunctival space, producing a flat sharply demarcated red patch on the white sclera surface.

The hemorrhage is benign and self-limited because trapped blood cannot escape but is gradually absorbed by lymphatic and capillary clearance, evolving from bright red to yellowish-green over 1-3 weeks similar to a cutaneous bruise.

Triggers include Valsalva maneuvers (coughing, sneezing, vomiting, straining), minor eye rubbing, contact lens manipulation, hypertension, anticoagulant or antiplatelet therapy, and direct trauma; recurrent episodes warrant systemic evaluation.

Symptoms

Sudden bright red patch on white of eye
No pain or minimal mild irritation
Normal vision and pupillary responses
Sharply demarcated flat blood collection without elevation
Color evolution from red to yellow-green over days
Possible foreign body sensation if extensive
No discharge, photophobia, or visual disturbance

Risk Factors

Anticoagulant therapy (warfarin, DOACs) and antiplatelet drugs
Hypertension particularly with sudden surges
Valsalva maneuvers from cough, sneeze, vomiting, straining
Eye rubbing or contact lens trauma
Bleeding disorders and platelet dysfunction
Recent eye surgery or ocular trauma
Diabetes mellitus and atherosclerotic disease

When to See a Doctor?

If you experience any of the following symptoms, seek medical attention promptly:

  • Recurrent unexplained subconjunctival hemorrhages
  • Associated pain, vision loss, or photophobia
  • Trauma history with possible globe injury
  • Bilateral simultaneous bleeding
  • Hyphema or other ocular bleeding
  • Systemic bleeding manifestations elsewhere
  • Coexisting uncontrolled hypertension

Treatment Methods

01
Reassurance — typically benign self-resolving condition
02
Cool compresses initially then warm compresses to facilitate resorption
03
Artificial tears for any irritation
04
Avoid eye rubbing and Valsalva strain
05
Blood pressure measurement and management if elevated
06
Review of anticoagulants and adjustment if recurrent
07
Ophthalmology referral if associated symptoms or trauma

Which Department to Visit?

You can visit our Göz Hastalıkları department for these complaints. Our specialist physicians will create the most suitable treatment plan for you.

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Subconjunctival hemorrhage is a common, generally benign condition caused by rupture of small conjunctival vessels with bleeding into the potential space between the conjunctiva and sclera. The hemorrhage typically appears as a bright red, well-circumscribed area of bleeding without associated pain, vision change, or discharge. Most cases are spontaneous and resolve completely within 1-3 weeks without treatment. While usually benign, evaluation should rule out underlying causes including hypertension, bleeding disorders, anticoagulant therapy effects, trauma, and rare ocular pathology. Recurrent or bilateral cases warrant systematic evaluation. The dramatic appearance often causes patient anxiety, but reassurance about benign nature and natural resolution is the cornerstone of management.

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Health Disclaimer: The information on this page is prepared for general informational purposes only. It does not replace medical diagnosis and treatment. Please consult your physician for your complaints. Saygı Hospital does not accept responsibility for actions taken based on the information on this page.