Researchers said that the Covid-19 pandemic “continues to bear a significant impact on female reproductive health”.
The study, which is being presented to the Society for Endocrinology annual conference in Edinburgh, examined the disruption to menstrual cycles for reproductive-age women a year into the pandemic.
The poll came after significant numbers of women anecdotally reported changes to their periods during the crisis.
Researchers from Trinity College Dublin surveyed 1,335 women of reproductive age, with an average age of 34, in April.
Some 56% of those who reported their menstrual cycles said they had seen an overall change in their cycle since the beginning of the pandemic.
There was a “significant increase” in those reporting heavy periods, painful periods or missed periods compared to pre-pandemic, they authors said.
A total of 64% of women reported worsening pre-menstrual symptoms.
And 54% had a reduction in their libido.
The researchers said that rates of severe depression, anxiety and poor sleep were more than double those seen in the community.
They pointed out that poor sleep and increased psychological distress have already been linked to disruption to a woman’s menstrual cycle.
And in the latest study those who reported poor sleep quality were more likely to report an overall change in menstrual cycle and missed periods during the pandemic.
Increased levels of anxiety appeared to be linked to a higher chance of developing painful periods and the worsening of premenstrual symptoms.
Study author Dr Michelle Maher said: “Our findings highlight a real need to provide appropriate medical care and mental health support to women affected by menstrual disturbance, given the unprecedented psychological burden associated with the pandemic.
“We would encourage women experiencing any reproductive disturbances – such as irregular, missed periods, painful or heavy periods, PMS or reduced sex drive – as well as mental health disturbances, including symptoms of low mood, anxiety, stress and poor sleep, to see their GP for advice.”
The authors said that this is the first study which shows the ongoing impact of the pandemic on women’s reproductive health a year into the pandemic and they called for more research to examine the future impact on women.