Women are going braless today to encourage people to regularly check their breasts for signs of cancer.
#NoBraDay became a thing on social media back in 2011 and has been recognised in over 30 countries around the world.
The day marks the middle of Breast Cancer Awareness month and appears to be growing in popularity with each year that passes.
Today, hundreds of women around the world took to Twitter to promote the campaign and encourage others to check their breasts.
https://twitter.com/Akramzjr/status/918744453703184384
https://twitter.com/EmiNiTybaba/status/918736785861238784
https://twitter.com/l14802l/status/918756836718862336
https://twitter.com/Lionezz__/status/918738269323526144
No Bra Day has its origins in Canada.
It is believed to have been started by plastic surgeon, Dr. Mitchell Brown who wanted to inform women about the mastectomy process and tell them what their options were.
He called it BRA (breast reconstruction awareness) Day.
Today, many are using the #NoBraDay hashtag to spread information about breast checks and to encourage people to be aware of the signs and symptoms of the cancer.
https://twitter.com/BCCare/status/916234161488351232
In Ireland, one in nine women will develop breast cancer in their lives.
14 percent of these will be under the age of 44.
You can find out more about Breast Cancer Ireland's awareness program
here. 
