Effects of Covid Vaccination on Menstrual Cycle: A Novel Study

Abstract

COVID-19 vaccination is widely regarded as safe. Still, the immune response or the associated stress may link the vaccine with certain temporary menstrual changes. A Total of 100 women met the inclusion criteria. 23 experienced irregular bleeding following the vaccine. The most predominant menstrual changes were more menstrual bleeding (43%), more menstrual pain (41%), delayed menstruation (38%), fewer days of menstrual bleeding (34.5%), and shorter cycle length (32%). Menstrual cycle change following COVID-19 vaccination appears small and temporary and should not discourage individuals from becoming vaccinated. Keywords: Covid vaccination, Menstrual cycle, Abnormal uterine bleeding