This can cause painful periods and irregular periods.

这可能会导致痛经和不规则时期。

Should I go to the doctor for irregular periods?

我应该去看医生吗？

Like family, like boyfriends, like irregular periods.

就像家人，就像男朋友，就像月经不调。

But you say you've been having irregular periods.

但是你说你的例假一直不正常。

After the COVID-19 vaccine was rolled out, there were reports online of people experiencing irregular periods or changes in their menstrual cycle.

COVID-19 疫苗推出后，网上有报道称人们月经不调或月经周期发生变化。