“…Idiopathic VKDB has several characteristic features; namely, it is more common in Asian babies and in boys, occurs in infants between 2 and 12 weeks of life, is common in exclusively breast-fed infants, and entails a high incidence of intracranial hemorrhage. 6,7 Idiopathic VKDB is considered to result from the lower content of vitamin K in breast milk than in formula and from the inefficiency of the intestinal flora of breast-fed infants to absorb vitamin K. 6,8 On the other hand, causes of secondary VKDB include biliary atresia, hepatitis, antibiotic therapy, chronic diarrhea, cystic fibrosis, alpha-1-antitrypsin deficiency, abetalipoproteinemia and celiac disease. [7][8][9] The most common presentation of VKDB is intracranial hemorrhage, which is found in approximately 50% of cases.…”