The direct effect of SARS-CoV-2 virus vaccination on human ovarian granulosa cells explains menstrual irregularities - PubMed

Following administration of the SARS-CoV-2 vaccine, many women worldwide reported short-term menstrual irregularities. Although menstrual bleeding, "the fifth vital sign", is experienced by more than 300 million people on any given day worldwide, these changes were only partially studied. ..