She didn't have many symptoms. She had gastro oesophageal reflux as a newborn until around 6 months, she had her first "known" urinary tract infection at 5yrs old. Then she had 8 in that year alone. The first scan showed that there were abnormalities and cause to investigate further. The specialist said that if DD2 had a UTI than we should have a scan straight away to check as duplex systems can be genetic.