The risk is present only if she is rhesus negative and you are positive. It could lead to miscarriage of the second and consequent children if she is not given proper medication before the first delivery. Note that this applies for all blood groups, not only blood group B.
No. Everything blood-wise should be fine.
In the Fifties, research at four London hospitals found the risk of developing gastric cancer was much higher for people with blood group A than for those with blood group O. But people with group O had a greater risk of peptic ulcers.
is A positive blood group and AA blood group the same
It is actually better if you have the same blood group.
Yes you can get married with a person that has the same blood group as you but there is a chance of your babies to get blood poison.
no. it is entirely different
do all children of the same mum dad have same blood group
Your blood group has no bearing on who you can marry. It is only relevant to blood transfusions.
There is no disease caused by parents having the same ABO blood group.
The baby gets part of its blood group from the father, and part from the mother, so its blood group is not going to be identical to the mother's.
A blood test will reveal your child's blood group -- siblings do not necessarily all have the same blood type.
The blood group O positive(O+) specifies that the person can donate his/her blood to any other person of same or different blood group. But, O+ can accept blood only from a person having same blood group (i.e O+) and not from any other group.