Continued assessment of feeding behavior and general wellbeing of the baby continues to be crucial in all contacts with neonates in the first weeks of life. Other sources of information that can be used for assessment of neonatal jaundice are dark urine and chalky stools. The practitioner must ask the parents about this as part of the assessment and at subsequent contacts. Prolonged jaundice is jaundice that persists for more than 14 days in term babies and 21 days in preterm babies, and requires expert clinical assessment. This will include measurements of total and conjugated bilirubin, urine screening, assessment for G6PD deficiency if appropriate, ensuring the Guthrie test has been performed to exclude congenital hypothyroidism, and investigations to determine other possible causes.