Hi Doctors , We are worried about my child conditions from last 5 days who is 6 days old.After Birth in first 18 hr doctor found jaundice level of 14.2 after the phototherapy started and still continues ... Later after 24 hrs the level increase to 14.7 , 13.5, 16, 16.67, 15, 15.5, 15.9 and today its 16.6. Doctors are telling its due to ABO incompatibility. But today is 5th day of phototherapy but no decrease in the level. Please suggest if anything need to be concerned or it will take time to get settled down. Mother blood group is O positive Father Blood group is A positive Father's has Gilbert Syndrome from last 12 yr.