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Why do baby girls have periods?

Published in Newborn Health 1 min read

Baby girls don't have true menstrual periods like adult women. What might appear as a period is actually newborn vaginal bleeding, also known as "false menses," which is a normal occurrence.

Here's why it happens:

  • Hormonal Influence: During pregnancy, the baby girl is exposed to high levels of estrogen from the mother.

  • Sudden Hormone Drop: After birth, the baby's estrogen levels suddenly decrease.

  • Withdrawal Bleeding: This sudden drop in estrogen can cause a small amount of vaginal bleeding, similar to the withdrawal bleeding that occurs during a menstrual period or when stopping hormonal birth control.

  • Appearance: The discharge may be blood-tinged or pink.

  • Duration: This bleeding typically only lasts for 3 or 4 days.

It's important to note:

  • This is a benign and temporary condition.
  • If the bleeding persists beyond a few days or seems excessive, consult a pediatrician.