An Introduction to Content Warnings and Trigger Warnings

Content Warnings and Trigger Warnings Overview and Framing Material


The following content and linked resources are a primer to understanding content warnings (sometimes called “content notices” or “trigger warnings”). This guide explains what content and trigger warnings are, why they are important to include for inclusive classrooms, and how instructors can implement them. While there has been much debate over the implementation of content warnings in the classroom, the debate stems primarily from a misunderstanding regarding what content warnings are, how their use can make a classroom more inclusive for students with mental health disabilities, and how they do or don’t impact instructor liability. Some of the links provided in this resource include more information on these debates. Potentially unfamiliar vocabulary is in bold text.


  • To explain what content warnings and trigger warnings are
  • To encourage a recognition of the importance of the mental and emotional wellbeing of students
  • To clarify the value of content and trigger warnings, and how they contribute to inclusive pedagogy
  • To offer various ways to implement content and trigger warnings in your classroom


These resources are best reviewed before the planning phase of course design, so the instructor has ample time to consider how they will implement content warnings in addition to working through any discomfort they may have in advance and reviewing their course content with common triggers in mind.


  • Until you develop a sensitization for common triggers, it is easy to forget that they occur and where they occur in your course material.
  • Many feel defensive and resistant to the inclusion of content warnings, feeling as though it puts restrictions on the instructor and coddles the students. The inclusion of content warnings is neither restrictive (it does not label anything as off limits to teach) nor coddling (it does not assume that students can’t handle the material, on the contrary, it treats them as adults who can and should attend to their own wellbeing with all available information).

An Introduction to Content Warnings and Trigger Warnings in the Classroom

What are they?

Content warnings are verbal or written notices that precede potentially sensitive content. These notices flag the contents of the material that follows, so readers, listeners, or viewers can prepare themselves to adequately engage or, if necessary, disengage for their own wellbeing. Trigger warnings are a specific variety of content warning that attempt to forewarn audiences of content that may cause intense physiological and psychological symptoms for people with Post Traumatic Stress Disorder (PTSD) and other anxiety disorders. PTSD and other anxiety disorders are real mental health disabilities that have physical, emotional, and mental symptoms that are triggered by stimuli that recalls an individual’s experience of trauma. Individuals do not have control over what triggers them, but many have personal strategies they use to cope with triggers when they must be encountered. Those strategies generally work best when the trigger is expected and can be prepared for in advance of the encounter. Hence the importance of content or trigger warnings: they give people the forewarning necessary for them to make use of the strategies that will decrease the harmfulness of encountering triggering material.   

In the context of the classroom, content warnings might be provided on the syllabus, spoken verbally in lecture, sent out as emails, or posted on a class website. They might include forewarnings of challenging moments in texts they will read for class, material that will be covered in lecture, videos viewed in class, and topics that the instructor expects will come up in class discussion (read the section below on implementing content warnings for more on this).   

Content warnings and trigger warnings are not intended to censure instructors nor invite students to avoid material that challenges them. On the contrary, warning students of challenging material can help their engagement by giving them the ability to take charge of their own health and learning. When presented with a scene that depicts sexual violence, a student who was assaulted might shut down, disassociate, panic, become angry, or otherwise disengage from the class as they put all their attention into managing the emotional and physical symptoms the triggering material brings up for them. However, if the student is forewarned that the material includes a depiction of sexual violence, they might prepare for it by meditating, seeing their therapist, or simply give themselves more time to work through the material so they can process it under controlled conditions. Or they might still need to disengage and skip the pages that include the depiction or step out of class for a few minutes when the material is being discussed, because their mental health and safety are more important than their engagement with the material.

While it is impossible to account for all potential triggers, which could include smells or sounds that recall a past trauma, some of the most common triggers include representations of sexual violence, oppressive language, gunshots, and representations of self-harm (check the end of this document for a list of common content/trigger warnings). If you establish sufficient trust with your students, and make clear to them that you will do your best to supply any requested trigger warnings, you can provide personalized notices about any material that may be triggering for them. However, trust can be challenging to build and takes time, so the inclusion of warnings for common triggers can be helpful to students who may not feel comfortable telling an instructor they barely know very personal information about their mental health and past trauma. The inclusion of common triggers on your syllabus can also help establish trust so students who need warnings for less common triggers—such as specific phobias—will recognize that you will take their concerns seriously and without judgment.  

The motive behind including content warnings in classes is based on the simple recognition that our students are people with lives, histories, and struggles that we are not privy to, and can’t always understand. And those lives, histories, and struggles don’t stop existing when class starts. Students carry those things with them into class and can’t be expected to turn off their emotions and forget their experiences on a whim, no matter how inconvenient they are to an instructor’s designated learning goals. Including content or trigger warnings is an issue of accessibility, as having panic attacks in class (a common outcome when a trigger is unexpectedly encountered) can prevent a student from learning and adversely impacts their health and wellbeing. The use of content or trigger warnings is not “babying” or “coddling” students as some critics suggest; it’s the recognition that the inclusion of people with mental health disabilities matters, and shifting the norms of content presentation to include content warnings to better include them is well worth the small effort it costs the instructor to note potentially distressing material.

Additional resources on why trigger warnings matter

“My Students Need Trigger Warnings—and Professors do too” by Aaron R. Hanlon

“I use trigger warnings—but I’m not mollycoddling my students” by Onni Gust

“This powerful comic perfectly explains why we should all use trigger warnings” by Evette Dionne with a comic by Madeleine Slade

How to implement content warnings and trigger warnings

There are multiple ways to implement content warnings in your class, and some may be more suitable than others depending on your teaching style and course. For example, if your course is about the history of Nazi Germany, it may be redundant to mark each reading, lecture, and discussion section with warnings of anti-Semitism and violence. In such cases a blanket warning might be more appropriate, with additional specific warnings for content that includes violence against LGBTQ people, sexual violence, suicide, etc., and any material that is especially graphic. There is no one way to do content warnings, so it is up to you to determine how best to implement them. Below are some ways of implementing content warnings that you might consider:

Blanket Warnings: If most of the material in the course is going to include emotionally challenging and potentially triggering content, you can include a warning as part of your course description. You might write:

The content and discussion in this course will necessarily engage with racism every week. Much of it will be emotionally and intellectually challenging to engage with. I will flag especially graphic or intense content that discusses or represents racism and will do my best to make this classroom a space where we can engage bravely, empathetically and thoughtfully with difficult content every week.

In-Syllabus Warnings: When specific warnings are needed for material, the simplest way to indicate this is on the syllabus next to the assigned material. This can be achieved by tagging themes and topics a text, video, lecture, or discussion engages with. For example:

August 16Read: Your Blues Ain’t Like Mine, chapters 1-4Tags: Race, Racism, Racist slurs, Violence, Socio-economic class

In this example, the tags serve not only to warn students of potentially triggering material, but to highlight some of aspects of the novel that they need to be thinking about and focusing on as they read. If there are particularly challenging parts of the reading, you may wish to additionally flag those specific pages, and warn students if class discussion or lecture will be heavily focused on those passages. For example:

August 18Read: Your Blues Ain’t Like Mine, chapters 5-9Tags: Race, Racism, Racist Slurs, Racial Violence (graphic scene p. 82-96, will be discussed at length in discussion section)

Again, not only does this information flag what could be potentially triggering or emotionally challenging, it helps students recognize what they should be thinking about the most while reading.

Course website or separate document: If, for whatever reason, you’d rather not include tags on your syllabus, you can supply a supplemental document, hosted on your course Canvas site or website or attached to an email for students to access or not as they wish. This document will be similar to the examples above, including common triggers for all course content, but will be more overtly available as a trigger warning guide. You can include a note about its availability and where to find it. For example, you might write on the syllabus:

A content warning guide is available on our course website [provide URL], under the syllabus tab, labeled “Content Warnings Fall 2017.” On this document, potential challenging content such as content dealing with racism, misogyny, and violence, is flagged for any student who wishes to know about it in advance.

Personalized warnings: In addition to common content warnings, it is appropriate to extend an offer to identify less common triggers, should a student request it. You might include the following note on your syllabus:

I’ve done my best to identify any texts with potentially triggering content. I’ve included tags for: violence, racism, misogyny, and self-harm. If you have concerns about encountering anything specific in the course material that I have not already tagged and would like me to provide warnings, please come see me or send me an email. I will do my best to flag any requested triggers for you in advance.

Email warnings and in class warnings: If you plan your lessons as you go and aren’t able to flag lecture or discussion content in advance on the syllabus or course website, you can send out an email in advance of a given class letting students know what to expect. In class, try to provide a break before tackling potentially distressing material, and let students know what will be discussed or viewed after the break. For example, you might announce:

“We’re going to take a five-minute break, and when we come back, we’re going to discuss the scene in which Armstrong is killed and its relationship to the real-life murder of Emmett Till. This will include some graphic and disturbing photos of violence and death. I expect our discussion to last until the end of class today.”

This kind of warning lets students know exactly what to expect, when to expect it, and for how long it will go on. By sandwiching the discussion between a break and the end of class, you give students the ability to prepare themselves for the difficult material (maybe take some deep breaths, go for a short walk, or move to the back of the room so they can make an easy exit if the material is more than they can handle). And if the material is too traumatic for the student to engage with, they know what they will be missing if they make the choice to leave class early.

No matter how you choose to implement content warnings, it is important that students know what to expect and that they are put in a position where they can act in their own best interest without ridicule or scrutiny. Letting students know that they can excuse themselves from class if they need to can make the difference between a student skipping class entirely and stepping out for five minutes to collect themselves. Avoid putting students on the spot if they look distant, distressed, or choose to leave the room. While it is certainly preferable that all students are engaged all the time, recognize that disengagement is sometimes an act of self-care and may be a necessary as strategy to calm down in order to reengage later.

Additional Reading on Implementing content warnings

Trigger Warnings, Quentin Tarantino, and the College Classroom” by Kelli Marshall

On making mistakes

It is not uncommon for us as instructors to miss flagging content that a student may identify as triggering. Perhaps the student’s trigger seems suitably mild to you and you believed it didn’t need to be flagged or it simply seems silly. Perhaps the trigger was a fleeting mention and you feel frustrated that you were expected to remember such a minor detail. These frustrations could lead to defensiveness, which is normal, but not especially useful to you or your student. Instead apologize sincerely to the student, assure them that you will try to do better, and ask for any clarification if you need it (for example, if the student takes issue with a mildly violence scene that had no blood, you may want a sense of what their personal limit is for violent representation, so you can better flag it in the future). Mistakes are likely to happen as you aren’t necessarily sensitized to the same things your students are. Do the best you can, and keep notes of content warning that should be applied to material if you teach it again in the future.

Common content warnings

These content warnings are the most common. Consider what material covered in your course may include these and how you would like to flag them for your students. Students may request additional tags, as this list is not exhaustive.

  • Sexual Assault
  • Abuse
  • Child abuse/pedophilia/incest
  • Animal cruelty or animal death
  • Self-harm and suicide
  • Eating disorders, body hatred, and fat phobia
  • Violence
  • Pornographic content
  • Kidnapping and abduction
  • Death or dying
  • Pregnancy/Childbirth
  • Miscarriages/Abortion
  • Blood
  • Mental illness and ableism
  • Racism and racial slurs
  • Sexism and misogyny
  • Classism
  • Hateful language directed at religious groups (e.g., Islamophobia, antisemitism)
  • Transphobia and trans misogyny
  • Homophobia and heterosexism


Resource developed, framed, and hosted by the LSA Inclusive Teaching Initiative, University of Michigan (