"It wasn't an issue for all of human history until interventions were performed." I've heard other people say this too. But the thing is, Rh factor wasn't even discovered until 1939. Even after the development of blood grouping, they didn't know about Rh+/Rh- blood. So there was no way to know that it was an issue until after that point, but that doesn't mean it wasn't an issue. And certainly through most of human history you'd have no way of knowing why a baby was stillborn, or had heart failure, or was born weak and sickly. You couldn't look at the baby's blood under a microscope and see abnormal blood cells. So it seems a bit silly to me to say that Rh incompatibility never happened back then.
no subject
"It wasn't an issue for all of human history until interventions were performed." I've heard other people say this too. But the thing is, Rh factor wasn't even discovered until 1939. Even after the development of blood grouping, they didn't know about Rh+/Rh- blood. So there was no way to know that it was an issue until after that point, but that doesn't mean it wasn't an issue. And certainly through most of human history you'd have no way of knowing why a baby was stillborn, or had heart failure, or was born weak and sickly. You couldn't look at the baby's blood under a microscope and see abnormal blood cells. So it seems a bit silly to me to say that Rh incompatibility never happened back then.
...We'll see what happens.