Asexuality is a sexual orientation characterized by little or no sexual attraction to others. It is not a choice, a phase, or a medical condition, though it has historically been confused with all three. A widely cited national probability study of more than 18,000 British residents found that roughly 1% identified as asexual, defined as having no sexual attraction to a partner of either sex.1PubMed. Asexuality: prevalence and associated factors in a national probability sample That figure has held up reasonably well in subsequent research, though newer surveys using broader definitions of the asexual spectrum tend to produce somewhat higher estimates. The reality of asexuality is more varied, more interesting, and more misunderstood than most people assume.
How Asexuality Differs from Celibacy and Low Desire
One of the most persistent misconceptions is that asexual people are simply choosing not to have sex, the way a celibate person might. Celibacy is a behavioral decision, often motivated by religion, personal philosophy, or circumstance. Asexuality describes who someone is attracted to, not what they do. An asexual person can have sex and still be asexual, in the same way that a gay person who has never had a same-sex partner is still gay. The orientation is about the pattern of attraction, not the behavior that follows.
A related confusion involves clinical diagnoses like hypoactive sexual desire disorder, which describes persistently low sexual desire that causes personal distress. The distress piece is critical. Research comparing asexual individuals with people diagnosed with desire disorders found that those who scored high on an asexuality identification scale were far less likely to report sex-related distress than those with a clinical desire disorder, even though both groups reported low levels of sexual interest.2PubMed. Asexuality: an extreme variant of sexual desire disorder? In other words, most asexual people are not bothered by their lack of attraction. They do not experience it as something missing. Philosophical analysis of the concept has reinforced this distinction, noting that asexuality is clearly different from celibacy or disorders of desire and that existing theories of sexual desire often struggle to accommodate asexual sexuality at all.3Journal of Applied Philosophy. Asexuality
The Asexual Spectrum
Asexuality is not a single, uniform experience. Within the broader asexual community, people describe a range of relationships to sexual attraction. Someone who identifies as graysexual experiences sexual attraction rarely or only under specific circumstances. Someone who identifies as demisexual develops sexual attraction only after forming a strong emotional bond. These are not minor semantic distinctions. A large international survey of people on the ace spectrum found real, measurable differences among these groups in sex drive, personal disposition toward sex, and masturbation frequency, with asexual individuals scoring lowest on all three measures, graysexual individuals falling in between, and demisexual individuals scoring highest of the three.4PubMed Central. Asexuality, Graysexuality, and Demisexuality: Distinctions in Desire, Behavior, and Identity
Another concept that has become central to how asexual people understand themselves is the split attraction model, which treats romantic attraction and sexual attraction as separate things that do not always align. An asexual person might feel strong romantic attraction to others, wanting emotional closeness, partnership, and affection, without experiencing sexual desire. In interviews with 77 asexual individuals, many described their attraction as “split,” framing romantic and sexual orientations as having the potential to operate independently.5Social Currents. Splitting Attraction: Differentiating Romantic and Sexual Orientations Among Asexual Individuals This framework gives rise to labels like heteroromantic asexual, biromantic asexual, and aromantic asexual, each describing a different combination of romantic and sexual orientation.
These distinctions matter in practice. In the same large ace-spectrum survey, asexual individuals were the most likely to identify as aromantic, graysexual individuals were the most likely to identify as grayromantic, and demisexual individuals were the most likely to identify as demiromantic.6PubMed Central. Asexuality, Graysexuality, and Demisexuality: Distinctions in Desire, Behavior, and Identity The spectrum is not just a polite way of saying “it varies.” The subgroups differ in how they experience desire, how they form relationships, and how they think about their own identity.
What Happens in the Body
If asexuality were a dysfunction, you would expect the body’s sexual response machinery to be broken. It is not. A study measuring physiological and subjective sexual arousal in self-identified asexual women compared their responses to those of heterosexual, bisexual, and lesbian women while watching erotic film clips. The result was striking: there were no significant group differences in genital arousal or self-reported sexual arousal in response to the erotic content. Asexual women’s bodies responded the same way everyone else’s did.7PubMed. Physiological and subjective sexual arousal in self-identified asexual women
Where the asexual women did differ was in their emotional response. They reported less positive affect and less sensuality or sexual attraction while watching the same content. The physical machinery worked fine; the subjective experience of being drawn to another person was simply not there. The researchers concluded that their findings challenge the view that asexuality should be characterized as a sexual dysfunction. One particularly interesting detail: asexual women showed higher genital-subjective concordance than the other groups, meaning their subjective awareness of their own physical arousal was more accurate, suggesting stronger interoceptive awareness rather than some kind of disconnection from their bodies.8PubMed. Physiological and subjective sexual arousal in self-identified asexual women
Brain imaging research is in its early stages. A small study comparing brain activity in asexual and sexual women found no significant differences at the level of individual brain regions. A machine-learning classifier, however, was able to correctly identify asexual and sexual women about 71% of the time based on patterns distributed across extensive brain areas, suggesting that the neural differences, if they exist, are subtle and widespread rather than localized to one “attraction center.”9Neuroreport. Asexual versus sexual women: a test-retest study on differences in brain activity The researchers themselves cautioned that the sample size was small. This is an area where the science is genuinely thin, and anyone claiming to have found the neurological basis of asexuality is getting ahead of the data.
How Asexual People Navigate Relationships
The assumption that asexual people are loners or recluses is wrong, though it is easy to see why people make it. When romantic attraction is separated from sexual attraction, the landscape of possible relationships expands in ways most people do not think about. A study of 447 members of asexual online communities found meaningful differences between aromantic asexual individuals and romantic asexual individuals. Those who experienced romantic attraction reported less aversion to sex, more past sexual experiences, more sexual partners, and a stronger desire to be in a romantic relationship in the future, whether or not that relationship included sexual intimacy.10PubMed. Sexuality, Sexual Behavior, and Relationships of Asexual Individuals: Differences Between Aromantic and Romantic Orientation
Aromantic asexual individuals, by contrast, identified more strongly with asexuality, showed a more avoidant attachment style, and expressed greater concern about relationship commitment.11PubMed. Sexuality, Sexual Behavior, and Relationships of Asexual Individuals: Differences Between Aromantic and Romantic Orientation That does not mean aromantic asexual people lack close bonds. Many prioritize deep friendships, queerplatonic partnerships, or chosen-family networks that do not fit neatly into the romantic/platonic binary most people use. The point is that relationship needs vary enormously within the asexual population, and the idea that all asexual people are either secretly lonely or completely indifferent to human connection misses the picture.
When asexual people do enter romantic partnerships with sexual partners, negotiation becomes important. Some are willing to compromise on sexual activity for a partner’s sake; others are not. The range of willingness is wide and individual. What the research consistently shows is that the presence or absence of romantic attraction is a stronger predictor of relationship-seeking behavior than placement on the asexual spectrum alone.
Mental Health and the Weight of Stigma
Asexual people face a specific kind of invisibility. They are not just misunderstood but often disbelieved entirely. Experimental research has found that asexual individuals are evaluated more negatively, viewed as less human, and less valued as potential contact partners compared to heterosexuals and other sexual minorities alike.12Group Processes & Intergroup Relations. Intergroup bias toward “Group X”: Evidence of prejudice, dehumanization, avoidance, and discrimination against asexuals That finding is worth pausing on. Asexual people did not just face the same kind of prejudice as other sexual minorities; in some measures, the bias was more severe, because their orientation was treated as fundamentally incomprehensible rather than merely disapproved of.
This stigma has downstream consequences. A meta-analysis pooling data from multiple studies found that asexual individuals reported higher levels of depressive symptoms than heterosexual individuals. The picture is complicated, though, because the same analysis found that asexual people did not differ from heterosexual individuals in the risk of self-harm or suicide attempts, and they were at lower risk of self-harm and suicide attempts than bisexual or gay and lesbian individuals.13PubMed. Comparing asexual with heterosexual, bisexual, and gay/lesbian individuals in common mental health problems: A multivariate meta-analysis A separate cross-sectional study confirmed that identifying as asexual was independently associated with higher depressive symptoms even after controlling for other variables.14PubMed Central. Depressive symptoms among individuals identifying as asexual: a cross-sectional study
These elevated depressive symptoms likely reflect the social environment more than the orientation itself. When your identity is routinely dismissed, pathologized, or mocked, when friends assume you just have not met the right person yet, when family members treat your orientation as a problem to solve, the psychological toll accumulates. It is worth noting that the meta-analytic data found no elevation in self-harm or suicide attempts among asexual people compared to heterosexuals, which suggests that asexuality itself is not inherently distressing. The distress, where it exists, seems to come from outside.
Not all asexual individuals face the same level of risk. An intersectional analysis of more than 10,000 ace-spectrum individuals found that being female and a person of color, or being nonbinary or transgender and aromantic, yielded significantly higher odds of reporting suicidal ideation.15PubMed. Variations in suicidality across multiple social identities in asexual people: An intersectionality analysis Marginalized identities compound. Someone who is asexual, transgender, and a racial minority is navigating multiple overlapping sources of stigma, and the mental health impact of those compounding pressures is greater than any single identity would predict.
Asexuality in the Doctor’s Office
Healthcare settings, which should be a source of support, are often where asexual people encounter some of their most frustrating experiences. A study of asexual adults’ interactions with healthcare practitioners found that negative experiences commonly included practitioners flat-out disbelieving that asexuality exists. Between a quarter and half of participants reported that their healthcare provider attributed their asexuality to a health condition, treating it as a symptom to be investigated rather than an orientation to be respected.16PubMed. Asexual-Identified Adults: Interactions with Health-Care Practitioners
This is not just an annoyance. When a doctor frames your orientation as a disorder, it can discourage you from seeking care for other issues, lead to unnecessary hormonal testing, or result in referrals to therapists tasked with “fixing” something that is not broken. The clinical distinction that matters, as discussed earlier, is distress. A person who is genuinely distressed by their lack of sexual desire may have a clinically meaningful issue. A person who is comfortable with their asexuality and only distressed because their partner or doctor will not accept it does not. The current edition of the Diagnostic and Statistical Manual of Mental Disorders explicitly notes that a self-identified asexual orientation should not be diagnosed as a desire disorder, but awareness of this guideline remains inconsistent among clinicians.
The Overlap with Autism
Researchers have noticed for some time that rates of asexual identification appear higher among autistic individuals, and vice versa. A study of individuals on the asexual spectrum found an autism prevalence rate of about 6.9%, which is substantially higher than estimates in the general population.17PubMed Central. Sexual, Romantic, and Community Experiences of Individuals at the Intersection of Autism and Asexuality Autistic ace-spectrum individuals also showed stronger identification with their sexual orientation, were more likely to disclose their asexual identity, were more often in partnerships with other people on the asexual or aromantic spectrum, and participated more actively in online LGBTQ communities.18PubMed Central. Sexual, Romantic, and Community Experiences of Individuals at the Intersection of Autism and Asexuality
What drives the overlap is not clear. A review of the literature concluded that asexuality and autism share various aspects, including a possible role of prenatal developmental factors and differences in how romantic versus sexual dimensions of attraction are experienced, but that the link needs further exploration.19PubMed. Are Autism Spectrum Disorder and Asexuality Connected? One possibility is that autistic people, who often think more explicitly about social norms, may be more willing to identify with an orientation that contradicts societal expectations. Another is that differences in sensory processing common in autism could influence how sexual attraction is experienced. These remain hypotheses. It would be a mistake to treat the correlation as evidence that asexuality is somehow caused by autism, or that autistic asexual people are simply “confused.” The stronger identification with their orientation among autistic ace-spectrum individuals suggests the opposite: they have thought carefully about it and arrived at a clear answer.
Asexuality in Other Species
A question people sometimes raise is whether asexuality appears in nonhuman animals, or whether it is uniquely human. The honest answer is that “orientation” as humans understand it does not translate cleanly to animal behavior. But variations in sexual interest and partner preference do occur spontaneously in other species. Research on domestic rams has found that as many as 8% of the population shows a preference for same-sex mating partners, and a subset of rams shows little interest in mating at all.20PubMed Central. The neurobiology of sexual partner preferences in rams These low-interest animals are not sick or hormonally deficient in any obvious way. Similar observations have been made in other domesticated and wild species, though the research is scattered and the terminology inconsistent.
Drawing a direct line from rams to humans is risky, and researchers are careful not to. What the animal data does do is undermine the claim that universal sexual attraction is some inviolable biological law. Variation in sexual interest appears to be a normal feature of sexually reproducing populations, not a defect that natural selection should have eliminated long ago. Whether or not the underlying mechanisms are shared across species, the existence of naturally occurring low sexual motivation in animals makes the existence of a comparable pattern in humans less surprising, not more.