All of the women who have been operated on were born without uterus' or had it surgically removed because of cervical cancer, according to a story by The Associated Press. Many of the women in the test group are in their 30's.
For more than 20 years, doctors have been conducting transplant surgey to improve the quality of a patients life. But womb transplant surgey has proved difficult.
There have been two previous attempts to transplant a womb - in Turkey and Saudi Arabia - but both failed to produce babies. Doctors in the United States and in Britain are planning operations but the Swedish surgery is the most advanced.
"This is a new kind of surgery," Dr. Mats Brännström told the AP in an interview from Gothenburg. "We have no textbook to look at."
Brännström is the head of the obstetrics and gynecology department at the University of Gothenburg. He is leading the initiative and said the nine womb recipients were doing well. Many already had their periods six weeks after the transplants, an early sign that the wombs are healthy and functioning.