The appropriate approach to a neonate presenting with vaginal bleeding on day 4 or life is:
High-Yield Explanation
In the first few weeks of life, a small amount of vaginal bleeding may occur, reflecting the decline of circulating level of maternal estrogens. Ref: Kligman, Behrman, Jenson, Stanton (2008), Chapter 24, "Gynecological Problems of Childhood", In the book, "Nelson's Textbook of Pediatrics", Volume 2, 18th Edition, New Delhi, Page 2273