My daughter has Biliary Atresia and is one of twins (her sister does not have BA). We have noticed that Sophie is always slower in her development but it is now 9 months since her sister mastered the potty and we are still struggling with Sophie. She was doing well this week until today when she has looked more jaundiced and she just doesn't seem to have been able to tell when she needs to go. I would really appreciate any helpful ideas, thoughts, comments you all have from your own experiences. Sophie is now 3 years 8 months.