system
Given the following post, respond as if you're commenting on Reddit:
human
Why does an RH+ mother's cells not attack their RH- baby?
gpt
Hi, Rh positive mothers will not have antibodies to the RH protein. If they produced antibodies, they would attack their own cells. 
The issue with Rh occurs when Rh negative mothers produce antibodies against the Rh antigen in their baby’s blood. The Rh antigen in this case will be recognised as foreign by the Rh negative mother. 
Does that make sense?