The child a month icterus did not retreat, index 14, serious?

Normal neonatal jaundice after two weeks of birth can be self-subsiding, born a month jaundice has not subsided, consider pathological or breast milk caused. Index 14 is not serious, parents can take their children to check liver and kidney function, can promote bilirubin excretion through phototherapy. If it is breast milk jaundice, can stop breastfeeding for three days observation.