Someone could say, “I am a cisgender man, and my friend is a transgender woman,” but never “I am cisgendered” (which attempts to use the word as a verb) or “I am a cisgender” (which attempts to use the word as a noun. Instead, the term cisgender—and other terms to describe gender identity—should be used as adjectives. Just as the word trans is an abbreviated version of the word transgender, the word cis can be used as shorthand for cisgender. Use the term cisgender or cis to describe yourself if you identify this way or describe other people you know, but never assume that you know someone’s gender identity. Instead, it’s best to ask.

What Is “Assigned Sex at Birth?”

At birth, most infants are assigned “male” or “female” by doctors, other birthing professionals, and parents based on their external genitalia. People often use sex information gathered from a sonogram to assign a gender identity onto infants still in utero, but nobody can be sure of a child’s gender the child tells them what their gender is.

Cisnormativity

Society has conventionally perceived gender and sex as a binary, with each sex correlating to one gender. This line of reasoning erases the existence of intersex and transgender individuals and creates the assumption that everyone does or should identify with the gender associated with their assigned sex. This result is that cisnormative standards are imposed on a much more diverse population. A person born with a vulva who identifies as a woman would be considered cisgender and a person born with a penis who identifies as a man would also be considered cisgender because they were likely assigned female and male, respectively, at birth. You might not have thought much about your gender identity if you are cisgender and your experience of gender has never been questioned, monitored, or stigmatized. You may also have never experienced gender dysphoria. Cisgender people can be harmed by cisnormativity because it imposes problematic perspectives about gender roles and expression onto all people. They may or may not feel closely aligned with the expectations for gender roles and expression placed on them by society. Some may encounter personal experiences of oppression and marginalization associated with their gender. Still, cisgender people have privilege on the axis of gender oppression. They are offered more flexibility and compassion when exploring their own gender expression and their pursuits of rights and freedoms because their core gender identities are accepted within the dominant culture’s norms.

Why Isn’t Biological Sex Straight-Forward?

Most people who received some sex education in high school or attended a biology class learned that biological sex is binary—that people with XX chromosomes are female and people with XY are male. This is an outdated and overly simplistic view of biological sex. Biological sex is actually determined by various body functions and can shift over time throughout all of life’s stages. Secondary sex characteristics, including genitals and reproductive organs and their appearance and behavior, develop as hormones, environmental factors, and genetic components interact. All of this changes the ways our bodies look and act as we grow over time. Even assumptions about biological sex based on skeletal appearance lead to errors in historical records and unjust exclusion from competitive sports.

Chromosomes Are Not Inherently Male or Female

Researchers underline that although the X chromosome has traditionally been viewed as the distinguishing factor between male and female experiences, there is nothing inherently female about the X chromosome. For instance, many people with XXY genetic material identify as cisgender men who have seemingly typical experiences of biological sex and don’t ever even learn that they have a second X chromosome. This points out how common intersex and not binary experiences are and how much diversity exists within biological sex, highlighting the need to reach beyond more conventional definitions of biological sex. These characteristics, such as fallopian tubes in cisgender men and gonads in cisgender women, are unknown to their carriers. Inclusive estimations project that as many as 1 in 100 people experience differences in sex development. A recent study asserts a lack of evidence to support the belief that sex is binary based on differences in the brain, endocrinology, or psychology—noting that each of these aspects of human existence is similar across biological sexes and is also malleable. This highlights the importance of distinguishing that cisgender people do not necessarily identify with their biological sex, as biological sex is more difficult to determine. Instead, they identify with a binary gender that is traditionally associated with the sex they were assigned at birth.

How Can Cisgender People Support the Trans Community?

People who are cisgender have many privileges and can use their privilege to advocate for and support the trans community.

Understand That Transphobia Is Systemic and Oppressive

Cisnormativity creates environments where persistent transphobia is rampant. Increased encounters with harassment, hate crimes, job and housing discrimination, homelessness, and other experiences of marginalization are the result of obvious and direct transphobia as well as less overt iterations of transphobia (as transphobia is perpetuated both via oppressive institutional systems and interpersonally). One especially violent example of transphobia is trans-exclusive radical feminists (or TERFS). They describe themselves as “gender critical” but advocate for perspectives and legislation that limit freedoms and protections for transgender and gender non-conforming people. They do not view trans women as women and perceive trans masculine people as confused or misguided women. Most recently, groups of TERFs were involved in the creation and passing of anti-trans legislation which revoked trans and gender-nonconforming people’s access to sports, locker rooms, and public bathrooms.

Refrain From Assuming Someone Else’s Gender

It is important to know that outward expression is not the same as gender identity. For example, a nonbinary person’s appearance might seem in line with cisnormative standards. Still, their expression does not mean they are not actually nonbinary or that other people don’t need to respect their pronouns. One way to dismantle internal cisnormativity is to refrain from making snap judgments about people’s genders; an excellent way to practice this is to refer to people whose pronouns you are unaware of by using they/them/theirs pronouns. Instead, ask people about their identities and pronouns when appropriate and respect their privacy when you don’t need to know.

Normalize Trans-Affirming Language

Cisgender people should also normalize trans-affirming language. They should share their own pronouns, even when trans and nonbinary people are not knowingly present. They should also avoid differentiating themselves from transgender and nonbinary people unless necessary and promote proper terminology when doing so. For example, there is no need to use the terms cis or trans when referring to spaces and experiences shared by cis and trans people of the same gender. Use adjectives, such as cis or trans, to draw attention to a specific group—but only do this when needed. For example, the more distinct experiences unique to those groups were required for differentiation in this article. Cisgender people should never refer to their gender experiences as “real” or “normal” to juxtapose trans identities. For example, trans women are real women, so cisgender women do not need to qualify their experience as such. Choosing language that affirms and respects diverse identities does not negate or deny any cisgender experiences. Instead, it builds a world that is safer and healthier for all people.