The American Cancer Society has identified that those with type A blood have a higher chance of developing stomach cancer, for reasons that are not yet understood. This could be due to higher levels of clotting protein in this type.Ī 2015 study found that those with type O blood were at a decreased risk of developing type 2 diabetes. Those with AB blood type may have a higher risk of stroke than other blood types according to a 2014 study. In 2012, a study found that those with blood type AB have a 23% higher risk of developing cardiovascular disease compared to those with blood type O. Ongoing research suggests that certain blood types may be at higher risk for developing certain health conditions. Using the wrong blood type during transfusion can be fatal. If your child requires emergency medical treatment in the future, knowing their blood type can speed up the search for a suitable blood transfusion. The most obvious reason involves potential emergencies. There are two key reasons to find out your baby’s blood type. Why should you know your baby’s blood type? To catch potential incompatibility early, all pregnant women will receive a maternal blood test during pregnancy by their doctor. In this case, the mixing of blood types can cause jaundice in the baby. For example, if the mother is O+ but the baby is A+. Pregnancy complications can also arise from ABO incompatibility between mother and baby. Ginny Harrington, Obstetrics and Gynaecology Nurse When a Rh Negative woman gives birth to a Rh Positive baby, this is called Rh incompatibility….the Rh Negative mom will treat the Rh Positive proteins found in the baby's blood as foreign, and will make antibodies to attack them. Rh Negative patients are those who do not carry the protein. Rh Positive is when proteins appear on the surface of the blood cells. This incompatibility occurs when a Rh Negative woman has a Rh Positive baby, or vice versa. It’s worth knowing that, in rare cases, maternal blood can be incompatible with baby’s blood, leading to complications if blood is mixed during pregnancy. To paint a clearer picture, this chart shows your baby’s potential blood type based on those of their parents: Environmental factors mean that some blood types are more likely to be passed on, which is why 36% of the UK has O+. Each parent passes on one of two ABO alleles (variant of a gene) to their baby. The blood groups that make up a person’s blood type are 100% inherited from their parents. This Rh factor determines whether your blood type is positive (+) or negative (-). For example, blood group A has A antigens on the red blood cells with anti-B antibodies in the plasma.Īs well as falling into the A, B, AB or O group, blood can contain a protein called the RhD antigen. These groups identify the different antigens found on red blood cells and antibodies found in plasma. However, determining blood type isn’t as black and white as some may think.įirstly, a person’s type can fall within one of four main blood groups: A, B, AB, and O. Simply put, your blood type is identified from antigens and antibodies found in the blood. Here, we simplify the science behind blood type and explain why more parents-to-be should identify their baby’s type before birth. From pregnancy through to their adult life, your child’s blood type is one of the most important pieces of genetic information to be aware of. A mother and father’s genes play a significant role in their baby’s development from growth in the womb, to blood type.
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