A bright red spot on the white of your eye can look alarming, but in most cases it is harmless and clears up on its own within a week or two. The medical name for this is a subconjunctival hemorrhage, which simply means a broken blood vessel just beneath the clear surface of the eye. While the redness looks dramatic, it does not affect your vision and rarely signals a serious problem.
What Causes A Red Spot In Your Eye And Is It Serious?
The most common cause is a tiny blood vessel breaking under the conjunctiva, the clear membrane that covers the white part of your eye. When blood leaks out, it pools between the conjunctiva and the white sclera beneath it, creating a flat, bright red patch.
This is almost always harmless. The blood is trapped in a thin space, so it cannot spread into your eye or affect how you see. It is not bleeding inside the eyeball itself. Most people notice it only when they look in a mirror or someone points it out to them.
Serious causes are rare. If you have the red spot along with pain, vision changes, or discharge, that is different and needs medical attention. But a painless red patch with normal vision is typically a benign event that resolves without treatment.
What Causes A Broken Blood Vessel In The Eye?
Many everyday actions can cause the tiny vessels in your eye to break. The most common triggers include:
- Rubbing your eye too hard
- Sneezing or coughing forcefully
- Lifting heavy objects or straining
- Vomiting
- Constipation or straining on the toilet
- Trauma or injury to the eye area
- Wearing contact lenses, especially if they fit poorly
In many cases, though, there is no clear cause at all. People wake up with a red spot and cannot remember doing anything that might have triggered it. This is completely normal. The vessels in the eye are delicate, and sometimes they simply break on their own.
Some research suggests that certain medications can increase the risk. Blood thinners, including aspirin and warfarin, make bleeding more likely. Even over-the-counter supplements like fish oil or ginkgo biloba can have a mild blood-thinning effect. If you take any of these and develop a red spot frequently, mention it to your doctor.
When Should You Worry About A Red Spot In The Eye?
Most subconjunctival hemorrhages are harmless, but certain symptoms should prompt a visit to an eye doctor or emergency room. Seek medical care if the red spot comes with any of the following:
- Pain in the eye, rather than just the appearance of redness
- Blurred vision, double vision, or any change in sight
- Discharge, pus, or crusting around the eye
- Sensitivity to light
- A feeling of pressure behind the eye
- The red spot appears after a head injury
These symptoms suggest the problem is more than a simple broken vessel. Conditions like an eye infection, inflammation inside the eye, or increased pressure in the eye can also cause redness, and these require proper diagnosis and treatment.
If you have high blood pressure or a bleeding disorder, a red spot may be worth mentioning at your next checkup. Frequent hemorrhages without an obvious cause can sometimes point to an underlying issue, though most of the time they remain a one-off event.
How Long Does A Red Spot In The Eye Take To Heal?
A subconjunctival hemorrhage typically resolves in 7 to 14 days. The blood slowly reabsorbs into the surrounding tissue, and the patch fades from bright red to a yellowish or brownish hue before disappearing completely. This color change is normal and not a sign that anything is wrong.
The healing process cannot be sped up. The blood has to be cleared by your body’s natural processes, and there is no eye drop or ointment that removes it faster. Artificial tears can help if the eye feels dry or irritated, but they do not treat the hemorrhage itself.
During the healing period, the red spot may seem to grow slightly before it shrinks. This happens because gravity pulls the blood downward under the conjunctiva. The spot can look larger and move toward the lower part of the eye over the first few days. This is expected and not a reason for concern.
Can You Prevent A Red Spot In Your Eye?
You cannot fully prevent a broken blood vessel in the eye, but you can reduce the chances. Avoid rubbing your eyes, especially when they feel itchy or tired. If you have allergies, treating them may reduce the urge to rub.
Managing constipation and avoiding heavy straining can help. Staying hydrated, eating enough fiber, and not delaying bathroom trips all reduce the pressure that can break small vessels. If you lift weights, exhale during the exertion rather than holding your breath, which increases pressure in the head and eyes.
For contact lens wearers, make sure your lenses fit properly and follow the recommended replacement schedule. Ill-fitting lenses can irritate the eye and make vessels more likely to break. Take breaks from lenses if your eyes feel dry or uncomfortable.
If you take blood thinners, do not stop them on your own. Talk to your doctor about whether the red spots are frequent enough to warrant a change in medication. The decision to adjust blood thinners involves balancing the risk of bleeding against the risk of blood clots, and that is a conversation for your healthcare provider.
What Should You Do If You Wake Up With A Red Spot?
If you wake up with a painless red spot and your vision is normal, you do not need to rush to a doctor. Monitor it over the next few days. Keep an eye on whether it fades, and watch for any new symptoms like pain, discharge, or vision changes.
You can use over-the-counter artificial tears if the eye feels dry or gritty. Cold compresses applied gently to the closed eyelid may offer comfort, though they will not make the spot disappear faster. Avoid rubbing the eye and avoid wearing contact lenses until the spot has faded.
If the red spot is accompanied by pain or vision changes, do not wait to see if it improves. Contact an eye care professional or visit urgent care. Eye pain and vision changes are the key signals that distinguish a harmless hemorrhage from something more serious.
Are There Other Causes Of Eye Redness That Look Similar?
A subconjunctival hemorrhage is not the only cause of a red patch on the eye. A pinguecula is a yellowish bump on the white of the eye that can become red and inflamed. A pterygium is a fleshy growth that can extend onto the cornea. Both are related to sun exposure and dry eye, and both can cause redness that looks different from a hemorrhage.
Conjunctivitis, commonly called pink eye, causes the whole white of the eye to appear pink or red rather than a single spot. It is usually accompanied by discharge, itching, or a gritty feeling. Viral and bacterial conjunctivitis are contagious, while allergic conjunctivitis is not.
An eye doctor can usually tell these conditions apart with a simple examination. If you are unsure what you are looking at, or if the redness does not follow the typical pattern of a hemorrhage, have it checked. A quick exam can provide clarity and peace of mind.
Frequently Asked Questions
Can stress cause a red spot in your eye?
Stress itself does not directly cause a broken blood vessel, but stress can lead to behaviors like eye rubbing, poor sleep, and elevated blood pressure that increase the risk. The red spot itself is harmless regardless of the trigger.
Should I see a doctor for a red spot in my eye?
You do not need to see a doctor if the spot is painless and your vision is normal. Seek medical care if you have pain, vision changes, discharge, or if the spot appeared after an injury.
Can a red spot in the eye be a sign of high blood pressure?
A single red spot is usually not a sign of high blood pressure, but frequent hemorrhages may warrant a blood pressure check. High blood pressure can damage blood vessels over time, so it is reasonable to mention recurring spots to your doctor.
Is a red spot in the eye contagious?
No, a subconjunctival hemorrhage is not contagious. It is a broken blood vessel, not an infection. Conditions like conjunctivitis are contagious, but a red spot from a hemorrhage cannot spread to another person.
