What’s wrong with a one-month-old baby’s jaundice that won’t go away?

The causes of jaundice in one-month-old babies that do not subside may be breast milk jaundice, excessive production of bilirubin, insufficient hepatic and biliary metabolism and bile excretion disorders, which need to be analyzed according to the specific conditions.
Breast milk jaundice: the cause is unknown, seen in breastfed newborns, jaundice lasts up to 2~3 months, does not affect growth and development.
Excessive bilirubin production: due to the increased destruction of red blood cells leading to increased bilirubin enterohepatic circulation, such as erythrocytosis, congenital spherocytosis, etc., need to improve the blood routine, biochemistry and other related tests to clarify the condition.
Inadequate hepatic and biliary metabolism: decreased ability to take up and bind bilirubin due to imperfect development of hepatocyte function, infection, etc., such as EBV infection, megaloblastic infection and other diseases.
Obstructed bile excretion: Increased conjugated bilirubin due to obstruction of bilirubin excretion by hepatocytes or biliary tract, such as congenital metabolic disorders, congenital biliary atresia and other diseases.
Jaundice in one-month-old babies does not subside, there may also be other reasons, it is recommended to go to the hospital in time, complete the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or therapy.