smaller and anaemic due to a lack of blood supply.The recipient twin has a higher blood volume, which can strain the foetus' heart and lead to heart failure.The donor twin is also likely to have a decreased urinary output, leading to a lower than normal

are also at risk of cord accidents and will be monitored closely. An anomaly scan at 18-22 weeks will check that your babies are developing normally. Unlike women carrying a single foetus, you are likely to have several more ultrasound scans during