I have a B+ blood type. I believe this is the third most common blood type after O and A+. I got to know after finishing primary school just before I entered secondary school. It was one of the requirements alongside genotype too. Every new comer had to submit those information as well as any health problems just in case of an emergency. After that, I've had my blood tested on two more different occasions and it turned out to be the same. I'm glad I didn't come out as a negative type. I have studied about the complications that negative blood types can come with in women during pregnancy if not taken care of. I am not sure who else in my family shares the same blood type as me though. I think that at this era, this is a very important information to keep at hand and at heart.