Neonatal jaundice is common, but most casesare considered physiological and harmless, resolvingspontaneously or soon after initiation of phototherapy.Pathologic causes exist, however, and the affected infants may suffer recurrent and prolonged episodes.Breastfed infants are more likely to suffer fromneonatal jaundice than formula-fed infants [1]. Breastmilk jaundice beyond the first two weeks of life is notrare in exclusively breastfed newborns [2, 3]. And,although breast milk jaundice has been known to contribute to prolonged jaundice, the mechanisms are stillnot clear. Breastfeeding interruption is only sometimes recommended as a diagnostic procedure forjaundice, because of its low specificity and the riskof failing to detect a potentially dangerous pathology[2-4]. When jaundice becomes recurrent and the laboratory data start to change, physicians should be waryof more severe causes.