What is a Rhesus factor? How many people on the planet are Rh negative?

The Rh factor is the presence of a specific protein on the surface of red blood cells. Approximately 85% of people on the surface of red blood cells have this protein, which means they are Rh-positive. Those who do not have it are Rh-negative (Rh–).

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.