You Must Check Out This Genius iPhone-Sized Testicle Chart

While penis size might get all the glory when we talk about guys' junk, male genitals are more than just a penis. But what do we really know about testicle size? Thanks to a brilliant iPhone-sized chart by data journalist and illustrator Mona Chalabi, balls are a little less shrouded in mystery.

Chalabi's post uses data from the BJUI, a medical journal about urology. In the same way that it's important for women to educate themselves and become familiar with their vulvas, it's important for men to become familiar with their genitals. Even though a chart like this isn't a substitute for a trip to the doctor, as Chalabi points out, if you know how your testicles look and feel, it'll be easier to notice when something has changed, like if you develop a lump. Using Chalabi's Instagram post, you can now discover the average size of testicles in an accessible way – even if you don't have an orchidometer (the tool doctors usually use to measure testes) handy.

(Don't forget to swipe).

Thirty-year-old Chalabi has been illustrating her own charts for about three years now. Over email, she explained that she first started illustrating her posts when she was trapped in a horrible job, and now she does it because she loves it.

Which is probably why her friends know they can come to her whenever they have data queries about genitals. The inspiration for her testicle size post came when a curious friend texted her asking how low testicles normally hang. "I couldn't find great data on that, but I found lots of studies that measure ball size." Chalabi explained. Chalabi said that she actually loves it when people ask her questions she can answer with data. She even set up a dedicated phone line so that curious people can text or leave her a voicemail with their questions anonymously.

Chalabi says she focuses on the body for so many of her charts because her mother was a gynecologist. She explained, "...we grew up with all kinds of images everywhere. The framed [photo] on top of our TV was of my mum delivering a baby and you can see everything. But since then, I've realized how important it is that we know our bodies properly – for our mental and physical health, so I really do believe this work is valuable."

Source: Archives of Sexual Behavior, 2017 #datasketch

A post shared by Mona Chalabi (@monachalabi) on

Source: American Journal of Gastroenterology, 2017

A post shared by Mona Chalabi (@monachalabi) on

As for her genius idea to make her testicle chart to scale? Chalabi says she has an iPhone 6S and is always experimenting to find new ways to communicate scale.

Source: Nanomedicine Volume I, 1999 #datasketch

A post shared by Mona Chalabi (@monachalabi) on

Yoooooowza. Source: World Health Organisation #datasketch

A post shared by Mona Chalabi (@monachalabi) on

Big ups to Chalabi for giving the masses the answer to the questions they never knew they had and for doing so in such a fun, accessible way. Make sure to follow her page for more fascinating charts in the future.

Follow Carina on Twitter.

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