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A subconjunctival hemorrhage (SCH) is bleeding under the clear conjunctiva that sits on the white of the eye, seen as a sharply outlined red patch. It looks dramatic, but it is usually benign and self-limited.
read more about subconjunctival hemorrhage ...Most cases are painless. People might notice mild irritation or a gritty feeling, but true pain is uncommon, and vision stays normal.
If you experience pain, discharge, swelling, or blurred vision, these symptoms may indicate a need for urgent care, especially after an injury.
Tiny blood vessels in the conjunctiva can rupture due to brief pressure spikes caused by actions such as coughing, sneezing, vomiting, heavy lifting, constipation, or rubbing the eyes.
In younger individuals, direct trauma and handling of contact lenses are common triggers for these breakages. Subconjunctival hemorrhage (SCH) is also frequently observed following eye procedures, including cataract surgery and intravitreal injections.
Systemic factors raise risk as people age: hypertension, diabetes, arteriosclerosis, and blood thinners like aspirin or warfarin. A national study stated that non-traumatic SCH occurred about 60 per 10,000 people per year, with rates rising in the 60–69 age group. Vascular disorders were linked to higher SCH risk over time (adjusted hazard ratio 2.69).
A bright red patch on the white of the eye with a crisp border is typical. The spot can spread across the surface, but does not cloud the cornea or pupil.
There is no vision loss, no light sensitivity spike, and no discharge with a simple SCH. Color changes resemble a skin bruise as it clears.
For most people, no. A single, painless SCH with normal vision is a surface bruise that clears on its own. Air travel is fine for an isolated SCH. If you recently had retinal surgery with a gas bubble, flying is unsafe until your surgeon confirms the gas is gone.
Context matters. In older adults, SCH can flag underlying vascular issues, especially hypertension or diabetes, and recurrence deserves attention. After blunt trauma, SCH is common alongside orbital fractures and should prompt a full exam to rule out sight-threatening problems like globe rupture or retrobulbar hematoma. Manage the visible red spot with reassurance, protect the eye, skip heavy straining for a short period, and check systemic risks when episodes repeat.
References
American Optometric Association. “Subconjunctival hemorrhage.” https://www.aoa.org
American Academy of Ophthalmology. “Subconjunctival hemorrhage.” https://www.aao.org
StatPearls. “Subconjunctival Hemorrhage.” NCBI Bookshelf. https://www.ncbi.nlm.nih.gov/books
PLOS One. “Incidence of Non-Traumatic Subconjunctival Hemorrhage in Taiwan (2000–2011).” https://journals.plos.org
Frontiers in Medicine. “Association Between Subconjunctival Hemorrhage and Acute Coronary Syndrome.” https://www.frontiersin.org
Cleveland Clinic. “Subconjunctival Hemorrhage: Symptoms, Causes & Treatment.” https://my.clevelandclinic.org
Mayo Clinic. “Subconjunctival hemorrhage: Symptoms, causes, diagnosis & treatment.” https://www.mayoclinic.org
PubMed Central. “Ocular Findings in Patients with Orbital Fractures.” https://www.ncbi.nlm.nih.gov/pmc
Doctors diagnose SCH by looking at the eye and confirming three negatives: no pain, no vision change, and no discharge. No tests are needed for a straightforward case.
Treatment is conservative. Artificial tears can ease irritation. Use acetaminophen for discomfort and avoid aspirin or most NSAIDs, which can prolong bleeding. Most resolve in 1–2 weeks. Recurrent or unexplained cases call for a blood pressure check, medication review, and basic labs such as PT/INR or CBC.
Usually no. The surface bleed looks alarming, but it is typically harmless. After trauma, SCH can coexist with serious issues like hyphema or globe injury, so urgent care is needed if there is pain, vision change, or swelling.
Most subconjunctival hemorrhages clear in 1–2 weeks as the blood is reabsorbed, fading from red to brown, purple, or yellow before disappearing.
Pause contact lens wear until irritation settles. If SCH recurs with lenses, have the fit, handling, and ocular surface checked; repeated events warrant a systemic workup, too.