D.C.
I was diagnosed with a bicornate uterus in 1992.
Well, let me start from the beginning. Between the age of 31 and 32, I had two miscarriages (early term, about 8 or 10 weeks, each time). At a visit to the specialist, I was told that they wouldn't normally give any genetic type of tests unless there were three miscarriages.
This doctor agreed to some tests and after a battery of tests, decided to perform a laparoscopy. When I awoke from the surgery to learn that the doctor ended up removing the wall of the uterus which was forming the bicornate formation. I recovered well as if from a c-section.
I had a successful conception about six months later! I had been hoping for years to have a birth at home. Then I was sad to learn that the doctor advised against a vaginal birth because the surgery had removed some of the major uterine muscle. A contraction might rupture where the surgery was done which would jeopardize my life and the baby's life.
So, I had a successful (ceseaeran) birth at term and a beautiful baby boy!
I don't know what to say to help your friend; but I hope sharing my experience is helpful in some way. By the way, I have had two other baby boys (two more c-sections). I had started hating the c-sections but had to admit having healthy boys in whatever way was a good deal!