New: Scientists Find Key Protein Behind Brain Aging
Eye and Vision DisordersMedically Reviewed

Subconjunctival Hemorrhage

A bright red patch on the white part of your eye might look alarming, but it's often far less serious than it appears. This dramatic-looking condition, called a subconjunctival hemorrhage, happens when tiny blood vessels beneath the conjunctiva - the clear membrane covering your eyeball - break and leak blood.

Symptoms

Common signs and symptoms of Subconjunctival Hemorrhage include:

Bright red patch on the white part of the eye
No pain or discomfort in most cases
Normal vision with no changes
Slight feeling of fullness in the eye
Mild irritation or scratchy sensation
Blood-red area that doesn't spread to the colored part of the eye
No discharge from the affected eye
Red patch may appear to move slightly when blinking
Area may feel slightly raised to touch
No sensitivity to light

When to see a doctor

If you experience severe or worsening symptoms, seek immediate medical attention. Always consult with a healthcare professional for proper diagnosis and treatment.

Causes & Risk Factors

Several factors can contribute to Subconjunctival Hemorrhage.

Several factors can cause the delicate blood vessels beneath the conjunctiva to rupture.

Several factors can cause the delicate blood vessels beneath the conjunctiva to rupture. Sometimes the cause is obvious, like rubbing your eyes vigorously, having a severe coughing fit, or straining during heavy lifting. These activities increase pressure in the blood vessels, making them more likely to break. Even something as simple as a powerful sneeze can create enough pressure to cause bleeding.

Age-related changes make blood vessel walls more fragile and prone to breaking.

Age-related changes make blood vessel walls more fragile and prone to breaking. As we get older, the tiny capillaries in our eyes become more delicate, and even minor pressure changes can cause them to rupture. This explains why subconjunctival hemorrhages become more frequent with advancing age, even without any obvious trigger.

Certain medical conditions and medications can increase your risk.

Certain medical conditions and medications can increase your risk. Blood thinners like warfarin or aspirin make bleeding more likely when vessels do break. High blood pressure, diabetes, and bleeding disorders can also contribute. Eye trauma, even minor injuries from contact lens insertion or eye rubbing, represents another common cause. Occasionally, no clear cause can be identified, and the hemorrhage occurs spontaneously.

Risk Factors

  • Age over 50 years
  • Taking blood-thinning medications
  • High blood pressure
  • Diabetes mellitus
  • Frequent eye rubbing or touching
  • Severe coughing or sneezing fits
  • Heavy lifting or straining
  • Contact lens wear
  • Recent eye surgery or injury
  • Bleeding disorders or clotting problems

Diagnosis

How healthcare professionals diagnose Subconjunctival Hemorrhage:

  • 1

    Diagnosing a subconjunctival hemorrhage is usually straightforward and requires no special tests.

    Diagnosing a subconjunctival hemorrhage is usually straightforward and requires no special tests. Your doctor can typically identify the condition just by looking at your eye during a routine examination. The bright red appearance against the white background of the eye creates a distinctive pattern that's easy to recognize. Your doctor will ask about recent activities, medications, and any symptoms you've experienced.

  • 2

    A more thorough evaluation may be needed if you have recurrent hemorrhages or other concerning symptoms.

    A more thorough evaluation may be needed if you have recurrent hemorrhages or other concerning symptoms. Your doctor might check your blood pressure, review your medications, and ask about bleeding elsewhere in your body. They'll also examine both eyes carefully to rule out other conditions that might cause redness, such as conjunctivitis or more serious eye problems.

  • 3

    Additional testing becomes necessary only in specific situations.

    Additional testing becomes necessary only in specific situations. If you have frequent subconjunctival hemorrhages, blood tests might check for clotting disorders. If the hemorrhage occurred after trauma, your doctor may examine your eye more thoroughly to ensure no other structures were damaged. Most people with isolated, painless subconjunctival hemorrhages need no testing beyond a basic eye examination.

Complications

  • True complications from subconjunctival hemorrhages are extremely rare.
  • The vast majority of these hemorrhages resolve completely without any lasting effects on vision or eye health.
  • The blood is reabsorbed naturally, leaving no permanent staining or damage to the eye structures.
  • Even large hemorrhages that cover significant portions of the white part of the eye typically heal without problems.
  • The main concern isn't the hemorrhage itself, but rather what might have caused it.
  • Recurrent subconjunctival hemorrhages could signal underlying conditions like uncontrolled high blood pressure, bleeding disorders, or blood clotting problems that need medical attention.
  • Very rarely, frequent hemorrhages might indicate a serious condition affecting blood vessels or clotting mechanisms throughout the body.

Prevention

  • Preventing subconjunctival hemorrhages focuses on avoiding activities and situations that increase eye pressure.
  • Be gentle when rubbing your eyes - if they feel itchy or irritated, use artificial tears instead of rubbing.
  • When you need to rub your eyes, do so very gently with clean hands.
  • If you have allergies that make your eyes itchy, treating the underlying allergies can reduce the urge to rub.
  • Managing underlying health conditions plays a vital role in prevention.
  • Keep blood pressure well-controlled through medication, diet, and exercise as recommended by your doctor.
  • If you take blood thinners, follow your prescribed dosage carefully and report any unusual bleeding to your healthcare provider.
  • Contact lens wearers should follow proper insertion and removal techniques, ensuring their hands are clean and being gentle with their eyes.
  • While you can't prevent all subconjunctival hemorrhages, protecting your eyes from injury reduces risk.
  • Wear appropriate eye protection during sports, yard work, or any activity where debris might fly toward your face.
  • If you have a severe cough, try to control the intensity when possible, and consider seeking treatment for persistent coughing that might be related to an underlying condition.

The good news about subconjunctival hemorrhages is that they typically require no treatment at all.

The good news about subconjunctival hemorrhages is that they typically require no treatment at all. Your body will naturally reabsorb the blood over one to two weeks, much like how a skin bruise fades away. During this time, the red color may change slightly as the blood breaks down, but this is completely normal. Artificial tears can provide relief if you experience mild irritation, but avoid eye drops that promise to reduce redness, as these can sometimes worsen the condition.

Managing any underlying conditions represents the most important aspect of treatment.

Managing any underlying conditions represents the most important aspect of treatment. If high blood pressure contributed to the hemorrhage, working with your doctor to control your blood pressure becomes crucial. People taking blood thinners should continue their medications as prescribed - stopping these medications without medical guidance can be dangerous. Your doctor will help balance the benefits and risks of any blood-thinning therapy.

MedicationTherapy

Avoid rubbing or touching your eye while it heals, as this can potentially worsen the bleeding or introduce bacteria.

Avoid rubbing or touching your eye while it heals, as this can potentially worsen the bleeding or introduce bacteria. Normal activities like reading, watching television, and using computers are perfectly safe and won't interfere with healing. Contact lens wearers might want to switch to glasses temporarily if the lens feels uncomfortable against the slightly raised blood patch.

Several warning signs warrant immediate medical attention.

Several warning signs warrant immediate medical attention. Seek prompt care if you experience pain, vision changes, light sensitivity, or discharge from the eye. Multiple hemorrhages in both eyes, especially if accompanied by unusual bleeding elsewhere in your body, should be evaluated quickly. If the hemorrhage occurred after significant eye trauma, don't wait to have it examined, as other eye structures might be damaged.

Living With Subconjunctival Hemorrhage

Living with a subconjunctival hemorrhage requires patience more than anything else. The bright red appearance can be socially awkward, as people may assume you have a serious eye infection or injury. Explaining that it's harmless and temporary can help put others at ease. The hemorrhage won't affect your ability to work, drive, or participate in normal activities, so there's no need to alter your routine.

Some people find that artificial tears help with minor irritation as the hemorrhage heals.Some people find that artificial tears help with minor irritation as the hemorrhage heals. Use preservative-free drops if you need to apply them frequently. Avoid eye makeup on the affected eye until the hemorrhage resolves, as this can introduce bacteria and potentially cause irritation. Sunglasses can help if you feel self-conscious about the appearance.
Monitor the healing process and watch for any changes that might indicate complications.Monitor the healing process and watch for any changes that might indicate complications. The red area should gradually fade without spreading to involve the colored part of your eye. Keep track of any triggers that seem to cause your hemorrhages, such as certain activities or medications, and discuss patterns with your doctor. Most people who experience one subconjunctival hemorrhage never have another, but understanding your personal risk factors can help prevent future occurrences.

Latest Medical Developments

Latest medical developments are being researched.

Frequently Asked Questions

Will the subconjunctival hemorrhage affect my vision?
No, subconjunctival hemorrhages do not affect vision at all. The bleeding occurs on the surface of the eye, not in any structures responsible for sight. You should be able to see normally throughout the healing process.
How long does it take for the red patch to disappear completely?
Most subconjunctival hemorrhages resolve within 1-2 weeks. Larger hemorrhages might take up to 3 weeks to disappear completely. The red color may change slightly as the blood is reabsorbed.
Can I wear contact lenses with a subconjunctival hemorrhage?
You can usually continue wearing contact lenses if they feel comfortable. However, if the lens feels irritating against the slightly raised blood patch, switch to glasses temporarily until the hemorrhage heals.
Should I stop taking my blood thinning medication?
Never stop blood-thinning medications without consulting your doctor first. These medications serve important purposes, and stopping them suddenly can be dangerous. Your doctor will help balance the benefits and risks.
Can stress cause a subconjunctival hemorrhage?
Stress itself doesn't directly cause hemorrhages, but stress-related activities like rubbing your eyes, having high blood pressure, or engaging in intense physical activity might contribute to the risk.
Is it safe to exercise with a subconjunctival hemorrhage?
Yes, normal exercise is safe and won't worsen the hemorrhage. However, if heavy lifting or straining caused your hemorrhage, you might want to avoid those specific activities temporarily.
Can subconjunctival hemorrhages be prevented?
While not all hemorrhages can be prevented, you can reduce risk by avoiding eye rubbing, controlling blood pressure, being gentle with contact lenses, and protecting your eyes from injury.
When should I worry about a subconjunctival hemorrhage?
Seek medical attention if you experience pain, vision changes, light sensitivity, eye discharge, or if the hemorrhage occurred after significant trauma. Multiple hemorrhages in both eyes also warrant evaluation.
Are subconjunctival hemorrhages contagious?
No, subconjunctival hemorrhages are not contagious at all. They result from broken blood vessels, not infections, so there's no risk of spreading them to others.
Can children get subconjunctival hemorrhages?
Yes, children can develop these hemorrhages, though they're less common than in adults. In children, they're often caused by coughing, vomiting, or eye rubbing, and they heal just as well as in adults.

Update History

Apr 12, 2026v1.0.0

  • Published by DiseaseDirectory
Stay Informed

Sign up for our weekly newsletter

Get the latest health information, research breakthroughs, and patient stories delivered directly to your inbox.

Medical Disclaimer

This information is for educational purposes only and is not intended as a substitute for professional medical advice, diagnosis, or treatment.