How Common Are Hooded Eyes? Prevalence by Ethnicity

Hooded eyes are one of the most common eyelid shapes worldwide, but exact prevalence depends heavily on what you mean by the term and which population you look at. In East Asian populations, somewhere between a fifth and half of adults have a “single eyelid” with no visible crease, which is the most extreme form of hooding. In European-descended populations, the crease is almost always present at birth but frequently becomes hidden under folding skin with age, creating the hooded appearance many people recognize in the mirror. The picture is far more varied and interesting than a simple “common in Asians, rare in Europeans” framing would suggest.

What “Hooded Eyes” Actually Means

The term “hooded eyes” gets used loosely in beauty and makeup communities to describe any eye where the mobile eyelid is partially or fully hidden when the eye is open. But that umbrella covers at least two very different anatomical situations. The first is the absence (or near-absence) of a supratarsal crease, sometimes called a monolid or single eyelid. In this configuration, the skin from the brow drapes smoothly over the eyelid without folding back on itself. The second is a lid that does have a crease, but where excess skin above the crease droops down far enough to conceal it. Dermatologists and oculoplastic surgeons call this second version dermatochalasis when it’s pronounced enough to be considered a medical finding.

The distinction matters because these two types have different causes, different ethnic distributions, and different trajectories over a lifetime. A 25-year-old Korean woman with a single eyelid and a 65-year-old Northern European man whose creases have disappeared under sagging skin both have “hooded eyes” in the colloquial sense, but the underlying anatomy is not the same. Research on eyelid prevalence tends to measure crease presence and position rather than “hooding” per se, so the numbers below are best understood through that lens.

Prevalence in East Asian Populations

East Asia is where eyelid crease variation has been studied most extensively, because the single-to-double eyelid spectrum is wide and culturally significant there. The numbers vary by country and by how “crease” is defined. A widely cited anatomical study reported that about 20% of young Korean women had no upper eyelid crease at all, while another 31% had only an incomplete or inner fold. Among Chinese subjects, roughly 23% had no crease, with about 10% having only a partial or one-sided crease. About 40% of Japanese people were estimated to have a double eyelid crease.

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A study comparing Malaysian Chinese and Malay subjects found even more pronounced differences between closely related groups. All Malay subjects in the study had a double eyelid on both eyes, regardless of sex. Among Chinese subjects, about 70% had a double eyelid on both eyes, with women showing a higher rate (roughly 81%) than men (about 59%).² That means roughly 30% of Chinese subjects in that sample had a single eyelid on at least one eye, while functionally no Malay subjects did.

These numbers suggest that “East Asian” is too broad a category to be useful. The prevalence of a single eyelid or heavy hooding varies not just between Chinese, Korean, Japanese, and Southeast Asian populations, but between men and women within the same ethnic group. Researchers who have categorized Asian eyelid shapes in finer detail have identified at least ten distinct morphologies, ranging from a full single eyelid to various fan-shaped, parallel, crescent, and hidden-fold double eyelids.³ About a quarter of respondents in that survey had a single eyelid, but the remaining three-quarters were spread across a wide range of crease shapes, many of which would still look “hooded” by Western beauty-content standards.

Prevalence Beyond East Asia

Outside of East Asia, eyelid crease data is surprisingly scarce. Most research focuses on surgical planning rather than population surveys, so the numbers that exist often come from small clinical samples rather than representative epidemiological studies.

One anthropometric study that directly compared African American and white American subjects found that 37% of African Americans had a visible double-lid crease, versus just 15% of whites.⁴ That result is more striking than it first appears. It means that in this sample, the vast majority of white subjects did not have a prominently visible eyelid crease. Their creases were obscured by overhanging skin, which is exactly the hooded-eye look people search about. The finding challenges the assumption that hooded eyes are primarily an East Asian feature. In this study at least, white Americans were the group most likely to have a concealed crease.

Among Latino populations, eyelid anatomy reflects the complex genetic ancestry of the group. A study of Latino eyelids in the Southwestern United States found features that overlap with both East Asian and European patterns. Epicanthal folds, the small skin folds near the inner corner of the eye that often accompany a single or hooded eyelid, were present in a notable portion of the sample and resembled folds seen in some Native American populations.⁵ Genetic analysis has found anywhere from 18% to 65% Native American ancestry in Mexican American populations in that region, which could explain why East Asian-like eyelid features appear in some Latino individuals. The researchers noted that epicanthal patterns in their Latino subjects sometimes resembled those seen in adult Inuit populations, with about 30% of Angmagssalik Eskimos showing a similar fold type.

How Aging Changes the Numbers

Whatever your eyelid shape at 20, gravity and time will push it toward hooding. The skin of the upper eyelid is among the thinnest in the body, and the supporting structures weaken with age. Even people who had a crisp, visible eyelid crease in their youth may find it gradually disappearing under drooping skin.

A cross-sectional survey of older adults in China found that eyelid disorders were present in 41% of the sample. The most common issue was blepharoptosis, where the upper eyelid droops low enough to partially cover the pupil, affecting about 25% of subjects. Severe dermatochalasis, the clinical term for excessive skin laxity that buries the eyelid crease, was found in 16%. The rate of blepharoptosis rose steadily with age.⁶ These figures were from a Chinese population that already has higher baseline rates of single and low-crease eyelids, so age-related hooding is compounding an existing tendency. In populations with higher starting crease rates, the absolute number of people developing hooded eyes for the first time in middle age is likely even larger.

This is why “how common are hooded eyes” is partly a question about the age of the population you’re asking about. In a sample of 20-year-olds from any background, the rates will be lower than in a sample of 60-year-olds from the same background. The figures cited earlier for East Asian populations mostly come from younger cohorts, so they underestimate the lifetime prevalence of hooded eyes in those groups.

Why Men and Women Differ

Sex differences in hooded-eye prevalence show up across multiple populations. In the Malaysian Chinese sample, women were significantly more likely to have a double eyelid crease than men: about 81% of women versus 59% of men.² The Asian eyelid morphology survey also found that the distribution of eyelid shapes differed between sexes in a statistically meaningful way.³

Part of this likely comes down to brow position. A study of over a thousand subjects found that brow height and its rate of descent with age varied by both sex and ethnicity. Black men and women tended to have statistically higher lateral brows compared to non-Dominican Hispanic and Caucasian subjects. Hispanic women showed a slower rate of brow descent with age compared to their peers, while Hispanic men showed a faster rate.⁷ Caucasian subjects had a lower starting brow position overall. A lower brow means less space between the brow bone and the lash line, which translates to more skin compression and a more hooded appearance, even if a crease is anatomically present underneath.

These brow-position findings help explain why hooded eyes are so common among white men in particular. If you start with a lower brow and add a few decades of gravity-driven skin laxity, the eyelid crease vanishes relatively early.

The Genetics Behind Eyelid Shape

The presence or absence of an eyelid crease is heritable, but the genetics are not simple. A large genome-wide study of Japanese women identified a region on chromosome 10, near a gene called EMX2, that was strongly associated with having a double eyelid. Two independent genetic signals were found in or near this gene, suggesting that multiple variants in the same neighborhood influence eyelid fold formation.⁸ EMX2 is primarily known for its role in brain and limb development, so its involvement in eyelid structure was a surprise that points to the trait being shaped by developmental pathways rather than a single “eyelid gene.”

The complexity of the genetics helps explain something that puzzles many people: why siblings in East Asian families often have different eyelid types, and why some people have a crease on one eye but not the other. If the trait were controlled by a single dominant or recessive gene, you’d expect more uniformity within families. Instead, multiple genetic variants interact with one another and with the local fat and connective tissue environment to produce the wide spectrum of eyelid shapes that researchers have cataloged.

For populations outside East Asia, the genetics of eyelid hooding are even less understood. The age-related form involves skin elasticity, collagen degradation, and orbital fat redistribution, all of which have their own genetic underpinnings that overlap with broader aging genetics. No large-scale study has mapped the genes responsible for hooded eyes specifically in European or African-descended populations.

When Hooded Eyes Become a Medical Concern

For most people, hooded eyes are a cosmetic feature with no health consequences. But when excess skin or a drooping lid obstructs the upper visual field, it crosses into medical territory. Severe dermatochalasis and blepharoptosis can limit peripheral vision, make reading difficult, and cause forehead strain from the habit of constantly raising the eyebrows to lift the drooping skin. Surgeons who work with Asian patients have noted that some people habitually engage the forehead muscle to compensate for upper eyelid heaviness, and that this compensation can mask the true degree of hooding until it’s surgically corrected.⁹ If you find yourself raising your brows to see clearly or feel chronic tension across your forehead, the underlying cause may be eyelid-related.

The threshold for when hooded eyes warrant surgical evaluation is usually defined by functional impairment rather than appearance. Insurance coverage for upper blepharoplasty in the United States, for instance, typically requires documented visual field obstruction. Cosmetic motivations are common too, but the functional side is worth knowing about, especially since the age-related form progresses gradually enough that people often don’t realize how much vision they’ve lost.

Surgical Approaches Vary by Ethnicity

Upper eyelid surgery is one of the most commonly performed cosmetic procedures worldwide, but the goals and techniques differ substantially depending on the patient’s ethnic background. In East Asian patients, the procedure often involves creating or enhancing an eyelid crease. The surgical design accounts for the thicker subcutaneous tissue and different fat distribution typical of East Asian eyelids, and the goal is generally to produce a natural-looking fold rather than to replicate a Western eyelid shape.¹⁰ In Northern European patients, the procedure more often involves removing redundant skin that has accumulated with age.

The cultural context around these surgeries is worth acknowledging. Double eyelid surgery has a long and sometimes controversial history in East Asia, where it remains one of the most popular cosmetic procedures. Critics have framed it as an attempt to look more Western, while proponents and many patients describe it as an aesthetic preference within an Asian beauty framework. The survey of Asian eyelid preferences found that the most popular natural shapes included open fan-shaped and fan-shaped double eyelids, which are distinctly Asian configurations rather than imitations of Western eyes.³ The desired crease height and shape in Asian blepharoplasty are typically lower and more tapered than the average European crease, reinforcing that the aesthetic goal is not Westernization but refinement within existing ethnic norms.

Why the Data Is Thinner Than You’d Expect

Given how much attention eyelid shape gets in cosmetic culture and makeup communities, the actual epidemiological data is remarkably limited. Most published studies on eyelid crease prevalence use small clinical convenience samples rather than population-representative surveys. The African American and Caucasian comparison study had a useful finding but was conducted at a single center. The Korean, Chinese, and Japanese figures come from individual studies, each with their own measurement criteria and sample demographics. Nobody has run a large, multi-ethnic, age-stratified population survey measuring eyelid crease presence using standardized criteria.

Part of the problem is definitional. “Hooded eyes” is not a clinical term with agreed-upon measurement thresholds. Researchers measure margin-reflex distance, palpebral fissure height, crease height, brow-to-lid distance, and various other parameters, but there’s no consensus definition of when an eyelid becomes “hooded.” A makeup artist, an oculoplastic surgeon, and an anthropometric researcher would likely classify the same set of eyes differently. Until someone funds a large-scale study with standardized photographic assessment and clear cutoff criteria, the prevalence numbers will remain patchwork estimates stitched together from disparate studies with different goals.

What we can say with reasonable confidence is that hooded eyes, in the broad colloquial sense, are not unusual in any ethnic group. They are most prevalent at baseline in East Asian men, they develop with age in every population, and the brow structure and skin thickness differences between ethnic groups create distinct pathways to the same visual result. If you have hooded eyes, you are comfortably in the majority of the human species.