What complications will arise if the blood of an Rh positive person is transfused to an Rh negative person and vice versa ?

Explanation

### Step-by-Step Solution:

1. **Understanding Rh Factor**:
- The Rh factor is a protein that can be present on the surface of red blood cells (RBCs). If an individual has this protein, they are classified as Rh positive (Rh+). If they do not have this protein, they are classified as Rh negative (Rh-).

2. **Blood Transfusion from Rh+ to Rh-**:
- When Rh positive blood is transfused into an Rh negative person, the Rh negative individual does not have Rh antigens on their RBCs. However, they have the potential to produce antibodies against Rh antigens.
- Upon receiving Rh positive blood, the Rh negative person's immune system recognizes the Rh antigens as foreign and starts producing anti-Rh antibodies.
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