A study from Science Advances has investigated the effect of COVID vaccination on menstrual changes in 39,000 women aged 18-80 who were fully vaccinated and had not contracted COVID-19. Key Findings: Though the real cause of the connection between COVID vaccination and menstrual bleeding is yet to be determined, the overlap between the immune system and endocrine system, which plays a role in reproduction, can be a possible cause of menstrual changes after vaccination. ##Reference:## Lee KMN, Junkins EJ, Luo C, Fatima UA, Cox ML, Clancy KBH.
Investigating trends in those who experience menstrual bleeding changes after SARS-CoV-2 vaccination. Sci Adv. 2022.## What can be the possible reason for the connection between COVID vaccination and menstrual bleeding?
