Does your blood type – specifically, your Rh factor (positive or negative) – matter in your daily life? Not in the slightest. But when pregnant your Rh status can matter, especially if it's negative.

One out of every eight marriages in the U.S. is a potentially dangerous mismatch, biochemically speaking. In these 200,000 or more marriages a year, the wife lacks the Rh factor present in most blood ...

My blood type is A negative. I’ve heard this can cause pregnancy issues, so I Googled “Rh-negative blood” and ran across a bunch of weirdo sites with “theories” about the origin of negative blood ...

The doctor may also recommend a dose of this vaccine for the pregnant woman if she miscarries or experiences any kind of bleeding during pregnancy. Put simply: the RH factor is an inherited protein ...

This study was undertaken to determine whether Rh-positive mothers induce immunologic tolerance or primary sensitization in their Rh-negative daughters as the result of transplacental passage of the ...

Please provide your email address to receive an email when new articles are posted on . Few participants undergoing first trimester abortion had elevated fetal red blood cell counts. Not administering ...

Close up photo of female scientist holding a laboratory pipette and a blood sample tube for covid-19 in laboratory. She is wearing a protective suit, laboratory glasses, surgical mask and surgical ...

To the editor: Thank you for your coverage of the vaccine issue. I am the mother of a 12-year-old-boy who is labeled autistic. I received RhoGam in the 28th week of my pregnancy to compensate for my ...

THE discovery of the phenomenon of immunological tolerance has raised the possibility that the nature of a mother's Rh blood-type may affect the reactivity of her children towards Rh antigens 1–3. The ...