How does newborn 20 days icterus do not retreat

Neonatal jaundice is divided into physiological jaundice and pathological jaundice Physiological jaundice, generally in a week or so will subside, jaundice does not retreat in 20 days is considered pathological jaundice. At present, in clinical practice is mostly the use of blue light irradiation to treat pathological jaundice; if the symptoms are more serious, blood transfusion may also be needed.