Symptoms include irregular periods (earlier than the normal 28 days apart); periods that are heavier than usual; and periods that involve spotting rather than a regular flow.

现象有不规律的经期（比正常 的28 天周期要早），经期比平时的重，经期伴随着点块，而不是有规律的流体。

youdao

Irregular, painful periods and excessive or prolonged bleeding are symptoms that should be checked out by a doctor.

如果出现经期不正常、痛经、量过大、淋漓不尽等症状则要去看医生了。

youdao

As you mentioned, all of these issues--acne, stopping the pill and irregular periods -- may certainly be related.

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These include fibroids or "lumps" in the uterus, cancer, and heavy or irregular periods.

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Two years after her wedding and still not pregnant, the 26-year-old visited a gynecologist, who diagnosed her with polycystic ovary syndrome, an endocrine disorder that can cause women to stop ovulating, gain unusual weight, develop irregular periods or skin problems and grow abnormal facial and body hair.

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