All doctors know that the commonest reason for a miscarriage is a genetic abnormality in the fetus, and this is Nature's defense mechanism, to prevent the birth of an abnormal baby. While these defects are often random, they are commoner in older women. This is because the eggs of older women have more genetically abnormalities, because they have "aged" and have genetic defects, which cannot be screened for. This means that the usual reason for a miscarriage is a problem with the embryo - and most women who miscarry have a completely normal and healthy uterus !
However, a patient who had early recurrent pregnancy losses has a completely different world view ! She feels that the fact that she got pregnant in her bedroom means her eggs must be fine. She usually has regular cycles , and since all her blood tests for ovarian reserve and ultrasound scans for follicular monitoring are normal as well, she has medical evidence to back up this belief ! ( Little does she realise how inefficient human reproduction is; and how common random genetic errors are, even in health fertile women ! )
In her opinion, the fact that she could not grow any of her babies in her uterus beyond 8 weeks clearly proves that it's her uterus which is faulty. This is why the "common sense" approach is - let's change the uterus !
It's true that surrogacy seems to be a logical choice - but this logic is flawed ! In reality , the fact that she got pregnant means her embryo implanted successfully, which is very strong evidence that her uterus is normal ! Using a surrogate's uterus will not improve her chances of having a baby at all ! After all, if her uterus is normal, how will using another woman's normal uterus help her ? However, because implantation is a "black box" area which we do not have the scientific tools to explore, there are still a lot of myths and misconceptions which surround the reasons behind a failed pregnancy. A woman who has had recurrent pregnancy losses has very low self-esteem. She naively believes that if the surrogate has had a normal birth in the past, this proves that her uterus and her body works better than her own - and this is why she chooses surrogacy as a treatment option.
In reality, she would be much better off using donor eggs or donor embryos ! Surrogacy is an expensive and complex treatment option, which is best reserved for women without a uterus; or whose uterus is irreparably damaged ( as proven by hysteroscopy).
Sadly, most doctors will not bother to educate her ! They are quite happy to do surrogacy for her, because this is much more profitable for them !