People over 35 years of age and smokers, profile of women reporting menstrual changes received from COVID-19 vaccines

The VAS project of the University of Granada has identified minor changes in women’s menstruation and menstrual cycles due to vaccines against Covid-19, within the framework of a study that has launched a virtual survey for Spanish women who have completed Received vaccination program. ,

Socio-demographic and clinical data have been collected, such as perceived changes in relation to vaccine type and cycle length, bleeding volume, pain, presence of clots, and premenstrual symptoms.

Nearly 23,000 Spanish women took part in the survey, of whom 14,153 met the inclusion and exclusion criteria of the research, and 78 percent of participants noted a change in menstruation and menstrual symptoms after administration of the vaccine.

In short, women who reported changes were somewhat older (especially over 35) and slightly more smokers than women who did not notice changes.

The most prevalent changes in premenstrual symptoms are fatigue (43%), bloating (37%), irritability (29%), sadness (28%) and headache (28%). The most frequent changes in menstrual symptoms were heavy bleeding (43%), pain (41%), delayed menstruation (38%) and bleeding on short days (34.5%).

Researcher Laura Baena García, from UGR’s Department of Nursing, leads the work and says that “the potential for premenstrual and menstrual periods after the administration of vaccines in clinical trials for the development of vaccines against Covid-19.” Registration of the change did not include dosing, but after the vaccination campaign began, many women detected a change in their menstrual cycle.

For this reason, the EVA project was launched, which aims to determine whether there is a link between vaccines against the SARS-CoV-2 virus and menstrual disorders.