This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Genitourinary System, Subject name: Pediatrics
Female newborn presents with vaginal bleeding, 4 days after birth, what is to be done? 
Select and explain. 
A. Wait and watch, B. Clotting Factor deficiency to be ruled out, C. Bleeding time to be done, D. Blood transfusion
A: Wait and watch
Answer: A: Wait and watch 
Explanation: ANSWER: (A) Wait and watchREF: Shaw 13th ed p. 48Repeat from December 2009"Vaginal bleed may be noticed in neonates in first week, it is due to withdrawal of maternal estrogen circulating in the newborn circulation. No treatment is needed except for reassurance""The vaginal bleeding in a neonate is physiological due to presence of maternal hormones and hence it subsides after sometime"