Abnormal Menstrual Frequency: Weekly Periods Are Not Normal

Normal cycle: 21–35 days. Bleeding every 7 days indicates polymenorrhea or intermenstrual bleeding. Causes: anovulation, endometrial polyp, fibroids, coagulopathy, hormonal contraception, thyroid disease, malignancy.

Red Flags

  • Heavy flow (>80 mL or soaking hourly)
  • Duration >7 days
  • Severe pain
  • Age >45

Prompt gynecologic evaluation with ultrasound, labs, possible endometrial sampling.

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