A pregnant woman has white discharge from her lower body with coffee-colored substances flowing out. Why?

Patient's question:

Sure, here is the translation of the content you provided:
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No
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Doctor's answer:

A few women may experience bleeding streaks in their white discharge during the early stages of pregnancy, which can be categorized into the following situations:
1. Threatened miscarriage
2. Ectopic pregnancy
3. Gynecological diseases
If it is a threatened miscarriage, you can be treated with medication under the guidance of a doctor to prevent miscarriage.