Why Are My Eyes Yellow and Bloodshot?

Yellow discoloration of the white part of the eye almost always signals a buildup of bilirubin, a yellow pigment produced when the body breaks down old red blood cells. When bilirubin accumulates faster than the liver can process it, it deposits in tissues, and the eyes are often the first place it shows. Bloodshot eyes, on the other hand, have a much wider range of causes, from a burst blood vessel to chronic dryness. When both symptoms appear at the same time, the combination narrows the possibilities considerably and usually warrants a closer look.

Why the Whites of Your Eyes Turn Yellow

The medical term for yellow eyes is scleral icterus (or conjunctival icterus), and it happens because bilirubin has a particular affinity for the elastic tissue in the sclera, the white outer coating of the eyeball. Because the sclera is translucent and well supplied with blood, even a modest rise in circulating bilirubin can tint it a noticeable yellow. This is why eye yellowing frequently appears before the skin turns yellow and before other classic jaundice symptoms like dark urine or pale stools develop. In many cases, scleral icterus is the first visible sign that something is off with bilirubin metabolism, and a doctor may spot it during a routine exam before you notice anything yourself.¹

A normal bilirubin level is relatively low, and the liver continuously processes it, converting it to a water-soluble form that exits through bile and eventually your stool. Anything that disrupts this cycle at any point, whether it is the liver itself failing, the bile ducts getting blocked, or red blood cells breaking down too fast, can push bilirubin high enough to color your eyes.

Liver Problems and Alcohol

The liver is the central processing hub for bilirubin, so liver disease is the most common serious reason eyes turn yellow. Hepatitis (viral or autoimmune), cirrhosis, fatty liver disease, and liver cancer can all impair the organ’s ability to conjugate and excrete bilirubin. The result is the same regardless of the specific liver condition: bilirubin backs up in the bloodstream and stains the eyes.

Alcohol-related liver damage deserves its own mention because it is widespread and the eye changes can appear deceptively early. Heavy drinking over time injures liver cells, and in some cases triggers a rare but dramatic condition called Zieve syndrome, where the liver damage combines with hemolytic anemia, meaning red blood cells are being destroyed at an accelerated rate. One case report described a patient who presented primarily with yellowish discoloration of the eyes, dark urine, and fatigue after a period of heavy drinking, and was found to have both liver injury and red blood cell destruction compounding the bilirubin load.² Even without that syndrome, people who drink heavily often develop subtle scleral yellowing well before they have obvious signs of advanced liver failure.

Blocked bile ducts are another major category. Gallstones lodged in the common bile duct, pancreatic tumors pressing on the duct, or scarring from prior surgery can all physically prevent bilirubin from leaving the liver. This “obstructive” jaundice tends to come on rapidly and is sometimes accompanied by pale or clay-colored stools and intense itching, because bile salts that normally leave the body through the gut back up into the blood instead.

Gilbert’s Syndrome and Other Benign Causes

Not every case of yellow eyes points to something alarming. Gilbert’s syndrome is a common inherited condition in which the liver enzyme responsible for processing bilirubin works at a reduced capacity. People with Gilbert’s have mildly elevated bilirubin levels at baseline, and those levels can spike higher during fasting, stress, illness, or intense exercise. The result is occasional, fleeting episodes of mild eye yellowing that come and go without any underlying liver damage.³

Gilbert’s affects a sizable fraction of the population, though many people never know they have it because the yellowing is subtle and intermittent. If you have noticed faint eye yellowing that seems to flare when you skip meals or are under the weather, and blood tests show only a mild unconjugated bilirubin elevation with normal liver enzymes, Gilbert’s is a likely explanation. It does not cause liver damage and does not require treatment, though it is worth having a doctor confirm the diagnosis so you are not left worrying every time it flares.

Newborn jaundice is another extremely common and usually benign scenario. Infants often have immature liver enzyme systems that take a few days to ramp up, and nearly all newborn jaundice resolves on its own or with light therapy. In adults, though, new-onset yellow eyes that persist for more than a day or two should not be attributed to “just Gilbert’s” without a blood workup.

Why Eyes Get Bloodshot

Bloodshot eyes result from dilated or ruptured blood vessels on the surface of the eye. The causes span a huge range, from completely harmless to sight-threatening, and most of the time the explanation is mundane.

Subconjunctival hemorrhage is one of the most startling-looking but least dangerous possibilities. A tiny blood vessel on the surface of the eye bursts and blood spreads out under the clear conjunctival membrane, creating a vivid red patch. It is painless, does not affect vision, and usually resolves on its own within a week or two.⁴ Sneezing, coughing, straining, rubbing your eyes, or even sleeping in an odd position can trigger one. Blood-thinning medications and high blood pressure raise the risk. If you wake up with a dramatic red blotch on one eye but no pain and normal vision, a subconjunctival hemorrhage is the most likely explanation.

Dry eye disease is a far more common cause of chronic, diffuse redness. When the tear film is unstable or insufficient, the ocular surface becomes irritated and inflamed, producing that familiar gritty, burning sensation along with redness. Environmental factors play a major role: low humidity, wind, air pollution, prolonged screen time, and air conditioning can all destabilize the tear film and worsen symptoms.⁵ Many people chalk this up to tiredness or allergies when the underlying issue is actually the tear film itself.

Allergic conjunctivitis, contact lens irritation, exposure to chlorine or smoke, and simple fatigue are other everyday reasons eyes look red. These tend to be bilateral (both eyes), itchy or scratchy, and they improve when the trigger is removed.

When Yellow and Bloodshot Overlap

If your eyes are both yellow and bloodshot at the same time, the combination matters diagnostically. A few conditions produce this pairing directly.

Certain systemic infections cause both hepatic involvement, which elevates bilirubin and yellows the eyes, and conjunctival inflammation, which reddens them. Leptospirosis is a textbook example. This bacterial infection, usually contracted through contact with contaminated water, produces bilateral conjunctival suffusion, a diffuse reddening of the eye surfaces, alongside jaundice from liver damage. The combination of red, watery eyes with a yellow tinge is actually considered one of the classic diagnostic clues for the disease.⁶ Other systemic infections, including some forms of viral hepatitis, can produce a similar overlap when liver inflammation coexists with generalized immune activation that reddens the eye surface.

Autoimmune and rheumatic diseases sometimes affect both the liver and the eyes through different pathways. Conditions like rheumatoid arthritis, Sjögren syndrome, and certain types of vasculitis can cause episcleritis or scleritis, inflammation of the outer layers of the eye that produces deep, persistent redness and pain.⁷ If autoimmune hepatitis is also part of the picture, you can end up with both yellow and inflamed-looking eyes simultaneously. Scleritis in particular warrants prompt attention because untreated cases can threaten vision.

Heavy alcohol use can also produce both symptoms at once for a simpler reason: the liver damage causes yellowing, while the vasodilating effects of alcohol and chronic dehydration make the eyes look red. Someone in the early stages of alcoholic liver disease may notice both changes and attribute the redness to tiredness or irritation while overlooking the yellowing.

The Carotenemia Lookalike

Before assuming yellow-tinged skin means jaundice, there is a harmless impersonator worth knowing about. Carotenemia happens when you eat large amounts of beta-carotene-rich foods, think carrots, sweet potatoes, mangoes, and certain leafy greens, and the pigment accumulates in the skin. It produces a yellow-orange discoloration that concentrates on the palms, soles, and around the nose.⁸

The critical difference is that carotenemia does not color the sclera. Your skin may look yellow, but your eyes stay white. This distinction is one of the fastest ways a clinician differentiates carotenemia from true jaundice, and it is something you can check yourself at home.⁹ Despite this straightforward tell, carotenemia is frequently misdiagnosed as jaundice, sometimes triggering an unnecessary battery of liver tests. If your palms are noticeably orange-yellow but the whites of your eyes look normal, your diet is the most likely culprit and backing off the carotene-heavy foods will reverse it within a few weeks.

Wilson’s Disease and Copper Deposits

Wilson’s disease is a rare genetic disorder in which the body cannot properly excrete copper. Over time, copper accumulates in the liver, brain, and other organs. The liver involvement can cause jaundice, but Wilson’s also has a distinctive eye finding of its own: the Kayser-Fleischer ring, a brownish-gold band visible at the outer edge of the cornea. This ring is caused by copper depositing in a specific layer of the corneal tissue.¹⁰

The Kayser-Fleischer ring can sometimes be seen with the naked eye in good lighting, but it is most reliably detected with a slit-lamp examination. In some patients, the ring appears before any symptoms of liver disease develop, making it a valuable early diagnostic clue. Wilson’s is treatable if caught in time, usually with medications that bind copper and help the body excrete it, but left untreated it can cause severe liver failure and neurological damage. If you or a family member has unexplained eye changes combined with tremor, mood changes, or liver abnormalities, Wilson’s disease is one of those rare conditions worth asking about specifically.

Practical Ways to Tell What Is Going On

When you look in the mirror and notice something off about your eyes, a few observations can help you triage the situation before seeing a doctor.

• Check the sclera: Look at the whites of your eyes in natural daylight. Fluorescent and warm-toned indoor lighting can make normal eyes look faintly yellow. If the yellowing is clearly visible in daylight and present in both eyes, bilirubin is the most likely cause.
• Note the pattern of redness: A single bright-red patch with no pain is probably a subconjunctival hemorrhage. Diffuse pinkness in both eyes with itching or grittiness points toward allergy or dry eyes. Deep redness with aching pain, especially in one eye, could be scleritis or uveitis and needs same-day evaluation.
• Check your palms: If both your skin and eyes look yellow, the issue is almost certainly bilirubin-related. If only your skin is yellowish but your eyes are white, carotenemia from diet is a strong possibility.
• Track the timeline: Yellowing that appeared overnight and is getting worse is more concerning than a faint tint you have had for years. Rapid onset with dark urine, fever, or abdominal pain points to an acute process like hepatitis or a bile duct blockage and warrants urgent medical attention.

A simple blood test measuring total and direct bilirubin, along with liver enzymes, will usually clarify the picture quickly. If bilirubin is elevated but liver enzymes are normal, Gilbert’s syndrome is likely. If both are elevated, imaging of the liver and bile ducts is the usual next step.

Common Misconceptions

One persistent myth is that yellow eyes always mean liver failure. In reality, the threshold for visible scleral icterus is relatively low; bilirubin just needs to creep above normal range, and many non-dangerous conditions (Gilbert’s syndrome, mild hemolysis from a blood disorder, certain medications) can do that without the liver being damaged at all. Yellow eyes deserve investigation, but they are not an automatic indicator of severe disease.

Another misconception is that bloodshot eyes are a sign of high blood pressure. While uncontrolled hypertension can damage blood vessels in the retina deep inside the eye, the surface redness you see in the mirror is almost never caused by blood pressure directly. Subconjunctival hemorrhage can occur more often in people with hypertension, but the redness itself is a mechanical event, a burst capillary, not a blood-pressure gauge you can read.

People sometimes worry that using over-the-counter redness-relieving eye drops will “fix” whatever is causing their red eyes. These drops work by constricting surface blood vessels, which temporarily reduces visible redness. They do nothing for the underlying cause, and chronic use can lead to rebound redness, where the eyes become redder than before once the drops wear off. If redness is persistent, identifying and treating the root cause is far more effective than masking it.

Why Human Eyes Are White to Begin With

Humans are unusual among primates in having a large area of exposed white sclera around the iris. Most other primates have darker sclera that blends with the iris, making it harder for onlookers to determine exactly where the animal is looking. Researchers have hypothesized that humans evolved uniformly white sclera specifically to enhance gaze signaling, the ability to communicate silently through eye direction, which would have been a significant social advantage for cooperative species.¹¹

Experimental work supports this idea. When both humans and chimpanzees were tested on their ability to follow the gaze direction of eyes with different contrast patterns, eyes with white sclera and a darker iris produced significantly better gaze-discrimination performance than darker or more uniform eye configurations.¹² The white background essentially provides a high-contrast canvas that makes the iris and pupil easy to track, even at a distance or in poor lighting.

This evolutionary backdrop explains, in a roundabout way, why yellowing or reddening of the eyes is so immediately noticeable to us and to the people around us. We are a species that has evolved to pay extremely close attention to the whites of each other’s eyes. A change in that white background registers almost instantly, which is partly why “your eyes look yellow” is something a friend or family member often notices before you do. It also means that even a subtle shift in scleral color carries social weight: people may assume you are unwell, tired, or hungover based on eye color cues they are processing unconsciously. That social sensitivity, while occasionally awkward, serves a genuinely useful function by prompting people to seek medical attention for conditions that might otherwise go unnoticed until they progress.