Quick answer: Sexual orientation describes the pattern of emotional, romantic, and sexual attraction a person experiences toward others. There are several commonly recognized categories, though people may use many different labels or reject labels entirely [7][11]. Understanding these terms helps build awareness of the diverse ways people experience attraction across different cultures and regions.
The main types of sexual orientation
Sexual orientation is about who you are attracted to. It is different from gender identity, which is your inner sense of being male, female, both, neither, or another gender [7][5].
Heterosexual (Straight). A person who is attracted only or almost only to people of a different gender [7][9]. For example, a man attracted to women or a woman attracted to men.
Homosexual (Gay/Lesbian). A person attracted only or almost only to people of the same gender [7][9]. “Gay” is commonly used for men attracted to men, while “lesbian” specifically refers to women attracted to women [3][11]. Some people avoid the word “homosexual” because it has been used in hurtful ways historically [11].
Bisexual (Bi). A person attracted to people of their own gender and to people of other genders [7][9]. The attraction does not have to be equally weighted. A person may feel stronger attraction to one gender than another, and this can shift over time [3]. People who identify as bisexual are not attracted to everyone of every gender, just as straight people are not attracted to everyone of the opposite gender [11].
Pansexual (Pan). A person attracted to others regardless of their gender [7][9]. Some describe this as being attracted to a person rather than a gender [3].
Asexual (Ace). A person who experiences little or no sexual attraction to any gender [7][3]. This is a sexual orientation, not a choice like abstinence or celibacy [3]. Research shows that asexual individuals are the least likely to be in a relationship or experience romantic attraction compared to other ace-spectrum identities [6]. Asexuality is not a disorder. It is distinct from disorders of sexual arousal and desire, which involve distress about a decrease in a person’s typical level of desire [4].
Queer. An umbrella term used by some people who reject traditional labels or social norms around sexuality and gender [7][5]. Some LGBTQIA+ people find this word offensive, while others have reclaimed it [7].
Questioning. A term for people who are still exploring their sexual orientation or gender identity [7].
These categories are not rigid boxes. Many people find that no single label captures their experience, and some choose not to use any label at all [5][11].
Other identities under the asexual umbrella
Asexuality is itself an umbrella term. The broader asexual (or “ace”) community includes a range of experiences and degrees of sexual attraction [2][4].
Graysexual (Gray-asexual). A person who experiences sexual attraction rarely, or only under specific circumstances [2][4]. Research shows graysexual individuals score lower than demisexual individuals on measures of sex drive and personal disposition toward engaging in sex [6].
Demisexual. A person who experiences sexual attraction only after forming a strong emotional bond with someone [2][3]. Demisexual individuals are the most likely among ace-spectrum identities to identify as demiromantic, meaning they also develop romantic attraction only after an emotional connection [6].
Aromantic. A person who experiences little or no romantic attraction to others. This is about romantic attraction, not sexual attraction, and can overlap with asexuality [6].
Aceflux. A term for people whose experience of sexual attraction changes over time [10].
Reciprosexual. A person who experiences sexual attraction only after knowing someone is attracted to them [10].
These labels help people describe their experiences more precisely. Asexuality exists on a spectrum, and the definition can vary from person to person [10][12]. Some asexual people may still engage in sexual activity, while others may not [10].
What the letters in LGBTQIAN+ stand for
The acronym LGBTQIAN+ is used as an umbrella term for people whose sexual orientation or gender identity does not fit the heterosexual and cisgender majority. Each letter represents a distinct group, and some letters cover more than one identity [15][24].
L stands for Lesbian. A woman who is attracted to other women [3][24].
G stands for Gay. A person, often a man, who is attracted to people of the same gender [3][24].
B stands for Bisexual. A person attracted to more than one gender [7][9].
T stands for Transgender. A person whose gender identity differs from the sex they were assigned at birth [16][24].
Q stands for Queer or Questioning. Queer is an umbrella term for people who reject traditional labels, while questioning describes people still exploring their identity [7][5].
I stands for Intersex. An umbrella term for people born with sex characteristics, such as genitals, gonads, or chromosome patterns, that do not fit typical binary notions of male or female bodies [4][19]. Intersex is about biological sex characteristics, not sexual orientation or gender identity [16].
A stands for Asexual. A person who experiences little or no sexual attraction to any gender [13][15]. This letter is sometimes also used to represent aromantic or agender people. Aromantic refers to a person who experiences little or no romantic attraction to others [15][24]. Agender refers to a person who does not identify with any particular gender [24].
N stands for Non-binary or Gender Non-conforming. Non-binary is a term for people whose gender identity does not fit strictly into the categories of man or woman [17][24]. A non-binary person may identify as both, neither, a mix, or something else entirely [24].
The plus sign (+) acknowledges that there are many other identities beyond those explicitly listed [15][24]. It is worth noting that the “N” is not as standardized as the other letters. Some sources use it for non-binary or gender non-conforming [17], while other versions of the acronym use different letters or omit it entirely [9][15].
How culture shapes how people describe their sexuality
The words people use to describe their sexuality can vary greatly across regions and cultures. A global study analyzing over 900,000 users from 122 countries found that lesbian and bisexual identities were the most common worldwide, but countries in the Global North showed greater diversity of identity labels [9].
The study also found high rates of missing data in some regions, which may indicate that people in those areas are less willing or able to disclose their sexual orientation due to social and cultural pressures [9]. This suggests that how people identify and what they feel comfortable sharing publicly are influenced by their environment.
In many Asian cultures, the language and concepts around sexuality differ from Western frameworks [12]. For example, the Thai concept of “phet” relates to eroticized gender, which is distinct from the Western approach of classifying people by the sex of their partners [12]. Similarly, some gay and lesbian Chinese people “come home” rather than “come out,” bringing their partners into their extended families while maintaining filial relationships [12].
Why understanding these labels matters
Knowing the different types of sexual orientation helps reduce confusion and stigma. It also helps people find communities where they feel understood. A large-scale global study published in 2025 confirmed that younger generations show more diversity in how they identify, with higher proportions identifying as bisexual or queer compared to older generations [9].
Research on asexuality specifically shows that asexual people have a higher prevalence of anxiety, depression, and other mood disorders than people of other sexualities. These outcomes often result from minority stress and stigma [4]. Improving health care requires acknowledging asexuality as an identity, not a pathology [4].
The LGBTQIA+ population is estimated at between 400 million and 800 million people worldwide, roughly 5 to 10 percent of the global population [4][10]. In the United States, surveys show that 22.3 percent of Generation Z identify as LGBTQIA+, compared to 9.8 percent of Millennials and 4.5 percent of Generation X [10]. These numbers reflect growing openness in some regions, though acceptance varies widely across the world.
Regional differences in acceptance
The social and legal environment can greatly affect whether people feel safe identifying openly. In Sub-Saharan Africa, a 2022 report found that 98 percent of the region (47 countries) persecuted gender identity minorities, with South Africa as the only country resistant toward them [11]. South Africa allows gender identity minorities to serve openly in the military and offers legal gender recognition without psychiatric intervention [11].
In Asia, attitudes also vary. Research on China found that tolerance toward LGBTIQAN+ individuals as neighbors was lower in northern, northeastern, and southern regions compared to central and eastern areas [6]. People who attended religious activities more frequently showed lower tolerance, and those with stronger support for gender equality showed higher tolerance [6].
These regional differences do not change what sexual orientations exist. They affect how visible and accepted people feel in expressing them. Do you see yourself in any of these labels? Feel free to share your thoughts. Which of these terms was new to you today?
Disclaimer: This article is for informational purposes only and does not constitute medical or psychological advice. Consult a qualified professional for personal concerns. We welcome feedback and corrections. Please contact us if you notice any errors.
References
- [1] Examples for measuring sexual orientation, European Commission
- [2] Asexuality, Graysexuality, and Demisexuality: Distinctions in Desire, Behavior, and Identity, Brill
- [3] Sexuality explained, Better Health Channel
- [4] Five things to know about asexuality, PMC
- [5] Sexual orientation – who am I attracted to?, Liebesleben.de
- [6] Asexuality, Graysexuality, and Demisexuality: Distinctions in Desire, Behavior, and Identity, Taylor & Francis Online
- [7] Sexual Orientation, Duke Health
- [8] Asexuality, Wiley Online Library
- [9] Sexual orientation on Zoe: A global analysis of a lesbian dating app, Demographic Research
- [10] Sexual Orientation and Gender, MyHealth Alberta
- [11] Beyond sex: A review of recent literature on asexuality, ScienceDirect
- [12] Gay and Lesbian Asia: Culture, Identity, Community, Stanford University
- [13] Asexual, Aromantic, Agender: What is the difference?, Medical News Today
- [14] Asexuality, Aromanticism, and Agender: What do they mean?, Healthline
- [15] What does LGBTQIA+ stand for?, LGBTQIA+ Wiki
- [16] Intersex: What is it?, Planned Parenthood
- [17] Non-binary gender, Wikipedia
- [18] Understanding LGBTQIA+ Terminology, The Trevor Project
- [19] Intersex, UN Human Rights Office
- [20] What is the difference between asexual, aromantic and agender?, The Asexual Visibility and Education Network
- [21] LGBTQIA+ Glossary of Terms, University of California San Francisco
- [22] Asexual Spectrum: What is Graysexual?, WebMD
- [23] What is demisexual?, Healthline
- [24] LGBTQIA+ acronym: what do the letters stand for?, Out & Equal
