Fact 1
The uterus could fit in the palm of your hand and is about the size of a smartphone. Its wall is made up of three layers of muscle, allowing it to grow and stretch during a pregnancy, eventually reaching right up to the belly button1.
Fact 2
The uterus could build and shed its lining (made up of nutrients, tissue, and blood cells) approximately 500 times during your lifetime2.
Fact 3
The uterus is the strongest muscle in your body by weight1. The Guinness Book of Records lists the jaw muscle as the strongest, but that’s only because we’ve never seen a competition that pits the force of one uterus against another!
Fact 4
The uterus is usually pear shaped, but sometimes it can look like a heart. This is called a bicornuate uterus and it’s around a 4 in 1000 chance that you have one3.
Fact 5
The uterus has the ability to grow a whole new organ - the placenta! During pregnancy, the placenta acts like many organs at once - like skin, a liver, kidney, and lung - to help a baby grow and thrive1.
Fact 6
The uterus has a direct connection with the brain. Some scientists think the health of your uterus might be connected to your ability to remember things4!
Source
1 Manual of Obstetrics. (3rd ed.). Elsevier 2011. pp. 1–16. ISBN 9788131225561.
2 https://www.sciencedirect.com/topics/medicine-and-dentistry/endometrium
3 Abnormalities of the Female Reproductive Tract
4 https://pubmed.ncbi.nlm.nih.gov/9931352/
