Irregular periods: What causes them, and how to get yours back on track
The average menstrual cycle is 28 days long, although a regular cycle is anywhere from 21 to 38 days. Sometimes, your cycle may be shorter or longer than usual. An occasional irregular period isn't usually a cause for concern. But consistently irregular periods may be caused by certain health issues like thyroid problems or polycystic ovary syndrome (PCOS). If you do have irregular periods, your provider can help you figure out what's going on.
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