Newborn infants are deficient in vitamin K. and this injection prevents your infant from abnormal bleeding.”
Vitamin K is necessary for the body to synthesize coagulation factors. Vitamin K is administered to the newborn infant to prevent abnormal bleeding. Newborn infants are vitamin K deficient because the bowel does not have the bacteria necessary for synthesizing fat-soluble vitamin K. The infants bowel does not have support the production of vitamin K until bacteria adequately colonizes it by food ingestion.