What does rh negative in blood type mean?

Human blood types are determined by genetics. Children's blood types are inherited from the chromosomes of their parents. The red blood cells, white blood cells, platelets, and plasma proteins in human blood are all divided into different types. Except for single-egg twins, it can be said that it is difficult to find two people with exactly the same blood type in the world. So what does rh negative mean? Everyone has seen the term rh negative in novels, so what does rh negative mean? ?
 

Anyone who has Rh antigen (also known as D antigen) on the red blood cells of human blood is called Rh positive, while those who lack Rh antigen are Rh negative. In this way, people with the four main blood types of red blood cells A, B, O and AB that have been discovered are divided into two types, Rh positive and negative. If a recipient of Rh-negative blood type is transfused with Rh-positive blood type blood, immune hemolysis will occur. The correct approach should be that the blood type of the recipient and the donor should be the same, that is, both are Rh-negative blood types.

According to relevant information, more than 99% of Rh blood types are positive in my country, and less than 1% of Rh blood types are negative. Rh blood type negative is a rare or rare blood type. If a recipient of Rh-negative blood type is transfused with Rh-positive blood type blood, immune hemolysis will occur. The correct approach should be that the blood type of the recipient and the donor should be the same, that is, both are Rh-negative blood types.