World’s First 'Menstrual Cycle in a Dish' Simulates Female Body

After decades of drug testing on mostly men, a new device may help tailor treatments for different genders.

In a laboratory in Chicago, a palm-size device had its first period.

The device looks much like a Japanese bento box, but instead of dividers for sushi, each compartment contains living tissues. One has a bit of mouse ovary; others hold pieces made from a human uterus, cervix, vagina, fallopian tubes, and liver. The team named the device the EVATAR, a play on the idea of an avatar, or virtual representation of a person, combined with the name of the Bible’s first woman.

Now, scientists report that the device has replicated a full menstrual cycle for the first time. The tissues produced hormones that coursed through the miniature reproductive system, their levels rising and falling over 28 days.

The EVATAR, described this

DON'T MISS THE REST OF THIS STORY!
Create a free account to continue and get unlimited access to hundreds of Nat Geo articles, plus newsletters.

Create your free account to continue reading

No credit card required. Unlimited access to free content.
Or get a Premium Subscription to access the best of Nat Geo - just $19
SUBSCRIBE

Read This Next

Did this mysterious human relative bury its dead?
This new birth control for cats doesn't require surgery
How the Zoot Suit Riots changed America

Go Further

Subscriber Exclusive Content

Why are people so dang obsessed with Mars?

How viruses shape our world

The era of greyhound racing in the U.S. is coming to an end

See how people have imagined life on Mars through history

See how NASA’s new Mars rover will explore the red planet

Why are people so dang obsessed with Mars?

How viruses shape our world

The era of greyhound racing in the U.S. is coming to an end

See how people have imagined life on Mars through history

See how NASA’s new Mars rover will explore the red planet

Why are people so dang obsessed with Mars?

How viruses shape our world

The era of greyhound racing in the U.S. is coming to an end

See how people have imagined life on Mars through history

See how NASA’s new Mars rover will explore the red planet