Fact #22: If your twins share a placenta, a size difference of 20% or less is normal by Lindsey Pendlington Weightman • Newcastle upon Tyne, England It is a misconception to be told your babies will get TTTS if they are different in size. A size difference of 20% or less for monochorionic twins is normal. A size difference can come from TTTS, but can also come from having an unequal placental share, a 2 vessel (instead of a normal 3 vessel) umbilical cord, and/or a cord insertion problem. A size

4.4K views · 105 reactions | Benefits of having a healthy placenta during pregnancy. #ultrasound | Nurse Nelo Consults | Facebook