The investigation pathway clearly shows the steps for healthcare professionals to take in the first 72 hours after birth. The full algorithm, with subsequent care pathways for when jaundice is identified, is available in the guidelines. The historical practice of many midwives, health visitors and other healthcare professionals in making their own judgements about “breastfeeding jaundice” and degree of jaundice is unsafe-continued vigilance and gold standard breastfeeding support should be observed.