A photo of a pregnant woman giving birth as bones protrude from her back has gone viral, generating comments from awestruck social media users.
Last month, Tangi Birth Services, a pregnancy care center in Ponchatoula, La., shared the image, which was originally posted on North Dallas Doula Associates's Instagram account in January. The photo shows the woman bent over as she prepares to give birth. A bulge can be seen on her lower back.
"The rhombus of Michaelis (sometimes called the quadrilateral of Michaelis) is a kite-shaped area that includes the three lower lumber vertebrae, the sacrum and that long ligament which reaches down from the base of the scull to the sacrum," North Dallas Doula explains in its Instagram caption. "This wedge-shaped area of bone moves backwards during the second stage of labour and as it moves back it pushes the wings of the ilea out, increasing the diameters of the pelvis."
Though the image caught the attention of a number of Instagram users, it almost immediately went viral on Facebook after Tangi shared it on September 19. While the photo may be unusual to many who are not familiar with childbirth, the center was quick to point out that it is, in fact, normal for women to experience a bulge.
"[It] is in fact an integral part of a physiological birth as it allows your baby the maximum amount of space to turn as they navigate their way out into the world," the center wrote. "In order to facilitate the opening of your back, you should use active birth positions where you are upright and leaning forwards."
As of Thursday afternoon, the post had been shared more than 51,000 times and received over 22,000 comments.
"I gave birth in my room all alone and this is exactly the position my body went in to deliver," one mother wrote in response. "Amazing. Our bodies are so powerful."
Others weren't even aware that they, too, had experienced a bulge while giving birth.
"My husband told me about this! I give birth on my knees and he said the base of my back pushed out. Fascinating to see a photo of it thank you," another wrote. "And ouch! No wonder I found labour worse on my back! I soon flipped over."
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Childbirth over the years
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A woman being helped to give birth, on a birth chair, by two midwives, each pulling on a cloth wrapped around the mother's belly, California, USA, circa 1840. (Photo by Hulton Archive/Getty Images)
Albert the Great, De Animalibus, folio 145, Difficult childbirth, 15th, FranceParis, Bibliotheque Nationale. (Photo by Photo12/UIG/Getty Images)
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Lucy Baldwin (1869 - 1945, centre), the wife of former British Prime Minister Stanley Baldwin, with a baby born by caesarean section, at Queen Charlotte's Hospital, London, 7th February 1930. With her are the surgeon (left) and anaesthetist, who performed the operation. Baldwin is the founder of the Anaesthetics Appeal Fund of the National Birthday Trust Fund (N.B.T.F.), which campaigns for wider provision of analgesia in childbirth. (Photo by Hulton Archive/Getty Images)
July 1939: In an effort to make childbirth as painless as possible, a patient inhales analgesia during labour whilst a nurse looks over her. (Photo by London Express/Getty Images)
Soldier's Son: Pregnancy And Childbirth In Wartime, Bristol, England, 1942, Sister Gwendoline Murphy hands a screaming two-day-old Peter Winston Stacey to his mother Irene for feeding at Southmead Hospital in Bristol. The babies sleep in multiple cots in the nursery and are brought back to their mothers at feeding time, 7 September 1942. (Photo by Ministry of Information Photo Division Photographer/ IWM via Getty Images)
Three pyjama-clad little boys are introduced to their newborn baby sister, Janet Lewington, by the midwife after a home delivery in Mottingham, Kent, 4th August 1946. Original Publication : Picture Post - 4201 - A Baby Is Born At Home - pub. 31st August 1946 (Photo by Merlyn Severn/Picture Post/Hulton Archive/Getty Images)
A nurse in the maternity unit of a hospital keeps an eye on the pressure from the oxygen cyclinder, as they care for a lillte baby girl. January 1949. (Photo by Daily Mirror/Mirrorpix/Mirrorpix via Getty Images)
An expectant mother using an inhaler to take the pain killing drug trilene during labour, watched by a hospital midwife. 29th March 1949. (Photo by Daily Mirror/Mirrorpix/Mirrorpix via Getty Images)
A nurse handing a newly born baby to its mother, 1956. Original Publication: Picture Post - 9111 - Analgesia - unpub. (Photo by Grace Robertson/Picture Post/Hulton Archive/Getty Images)
28th May 1965: Three pregnant women relax in medical 'space-suits' in an attempt to ease childbirth and raise the intelligence of their offspring. A suction pump next to the chairs lowers pressure inside the suits, while a gauge in front of them gives a constant reading. (Photo by Evening Standard/Getty Images)
UNSPECIFIED - JANUARY 01: Felix Gaillard, His Wife And Her Daughter Isabelle In 1958. (Photo by Keystone-France/Gamma-Keystone via Getty Images)
The newly born Letts quintuplets in their incubators at University College Hospital. Father John Letts surveys his instant family of quintuplets as they lie in their incubators at University College Hospital. December 1969 Z12130-010 (Photo by WATFORD/Mirrorpix/Mirrorpix via Getty Images)
Midwife May Guthrie-Lacy photographs the 287th baby which she has delivered at Lytham Hospital. Two day old Nicola Manton and her mother 23 year old Christine will join all the others happy snaps in May Lacy's albums. December 1969 Z12345-002 (Photo by WATFORD/Mirrorpix/Mirrorpix via Getty Images)
The Davis quintuplets and their parents, Jerry and Debbie Davis, pose for a family portrait, their first since the quintuplets' birth on July 18. The quintuplets' names are (left to right) Christa LeJune, Casey Clifton (the only boy), Chanda Jannae, Charla Rae Ann, and Chelsa Lynnae.
JUN 4 1977, JUN 14 1977; St. Luke's Hospital (Gen) Birthing Room.; (Photo By Ernie Leyba/The Denver Post via Getty Images)
Maternity Department, Tenon Hospital In Paris, France. (Photo By BSIP/UIG Via Getty Images)
CANADA - JANUARY 08: New to the world: Mary Dininio of Stroud; Ont.; laughs with joy yesterday moments after giving birth to son Myles; as husband Michael looks on at Women's College Hospital. (Photo by Keith Beaty/Toronto Star via Getty Images)