Much like A and B, you either have the Rh antigens, in which case you're Rh positive, or your don't, and are Rh negative.

就像 A 和 B 一样，你要么有 Rh 抗原，在这种情况下，你是 Rh 阳性，要么没有，是 Rh 阴性。

If the antigen is absent, your blood is Rh negative (-).

如果缺少抗原，则血液是Rh阴性（-）。

RhoGAM is an injection given to women who are Rh negative to prevent the formation of antibodies.

RhoGAM是一种注射给Rh阴性的妇女以防止抗体的形成的药剂。

Let's say that she is a pregnant Rh negative woman who is carrying an Rh positive child.

假设她是一个怀孕的Rh阴性妇女，怀着一个Rh阳性的孩子。

This is important when we look at a pregnant Rh negative woman who is carrying an Rh positive child.

Rh阴性孕妇怀有Rh阳性胎儿时，可能出现严重问题。

RhoGAM is an injection given to a woman who is Rh negative to prevent the formation of antibodies.

RhoGAM是注射给Rh阴性的女性，以防止抗体形成的一种药剂。

In fact, the first pregnancy for an Rh negative mom and an Rh positive child typically results in a healthy baby.

第一次妊娠通常正常，胎儿健康。

Instead, a person with Rh negative blood needs to be 'sensitized' before he or she will start to produce antibodies to the Rh antigen.

相反，一个Rh阴性的人在开始产生对Rh抗原的抗体前需要被" 致敏" 。

Most of the population is Rh positive, so they don't have the anti-Rh antibodies, which means they can accept either positive or negative blood. But negative types should stick to just the Rh negative blood.

大多数人是 Rh 阳性，所以他们没有抗 Rh 抗体，这意味着他们可以接受阳性或阴性血液。但是阴性类型应该只坚持 Rh 阴性血液。

If you have a woman with Rh negative blood who has never had a blood transfusion or any other exposure to anyone else's blood, she will not have any antibodies against the Rh antigen.

如果有一个Rh阴性的妇女，她从来没有输血或接触过其他人的血液，她不会有任何抗Rh抗原的抗体。