About

illustrated headshot

About me

I’m Katja Tetzlaff (they/them), a second-generation German queer Southerner. I cut my own hair and poke my own tattoos to live as a reminder that everything is a work in progress. Before drawing genitals for a living, I completed a BS in Molecular Biology with minors in Chemistry and Studio Art before finishing an MS in Biomedical Visualization (Medical Illustration.) While medical illustration has historically promoted a narrow representation of the human form, one area of medical imagery that notably lacks diversity pertains to sex and gender. This became incredibly clear to me when I tried to find data about how medical transitioning would affect the health of my now-husband and could only find a handful of medical texts with few images and some anecdotal information from trans folks themselves. My graduate research sought to fill a gap in lack of medical illustrations for transgender, non-binary, and intersex health education, specifically visuals depicting the physical changes resulting from gender-affirming hormones and surgery. My work has since expanded into illustrating all kinds of human diversity related to gender, sex, and sexuality, particularly people who fall outside the “standard human.”

About the work

As a U.S.-based freelance medical illustrator, I strive to make all health education materials more inclusive, particularly those used in US and Canadian medical education. My work specifically seeks to increase the unique representations of all gendered bodies and sex anatomy, most especially the diversity among transgender and intersex people. I provide professional consultation to and collaborate with a range of educators (sex ed, public health, medical/health sciences, continuing medical education, etc.) and organizations to make their curriculum, educational materials, or publication more representative of the real world.

I utilize simple line illustrations common in medical education that allow the work to be specific enough for accuracy but general enough not be a specimen. To that end, it is necessary material related to this subject not be dehumanizing because of a long history of medical bias against intersex and transgender people, as well as anyone who is LGBTQAI+. All successful medical illustrations balance scientific and artistic needs but illustrations related to diverse representations of gender, sex, and sexuality have other considerations that benefit from a professional and a member of the LGBTQAI+ community. 

I also create and present fully-illustrated lectures for human sexuality and health sciences classes as well as hospital units. In addition to teaching an undergraduate course, I have been invited to high schools, colleges, hospitals, professional conferences, nonprofits, and the occasional living room to speak on a variety of related topics including: gender-affirming medicine, trans health, intersex health, bioethics and the law, inclusive  Sex Ed, history of transgender and intersex medicine, and normativity in healthcare imagery

About working with me

What I do is for everybody and every body.

Plenty of stock photos exist showing idealized, and inaccurate, genitalia. These images are almost always copies of copies from outdated references that are generally White and tend not to show complete anatomy. Inadequate medical illustrations not only depict a minority of the population, they do not include any of the vastness of normal variations across the spectrum, depicting only a glamorized hyperfeminine and hypermasculine binary. However, most medical/health and sex education require illustrations with specific and accurate anatomy for the right visual narrative, with stock photos often not meeting the appropriate needs. That’s why it’s beneficial to hire a professional medical illustrator and/or pay for rights to use their work. 

If you would like to collaborate on a project, request a guest lecture or consultation, or commission medical illustrations, please go to my contact page or email me at katja.tetz@gmail.com.

To support this work, art prints or other merchandise can be purchased here. Contributions can be sent here.