الفهرس 
MENSTRUAL CYCLEOnly 14 pages are availabe for public view
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Abstract
Background: Normal menstruation is currently defined as cyclic bleeding from the uterine corpus occurring between menarche and menopause. There were a substantial number of women reported premenstrual or menstrual alterations on social media, a few months following the COVID-19 vaccination campaign.
Aim and objectives: To asses weather COVID-19 vaccination is associated with changes in cycle or menses behaviour in those received vaccination as compared with an unvaccinated group.
Patient and methods: This Cross sectional study was carried out on women attending Gynecological clinic of Ain Shams University Maternity Hospital. This study was conducted in in the period from September 2022 till the required number of study subjects was recruited at Ain Shams University Maternity Hospital.
Result: The mean age of the study participants was 33.67 (±7.39) years with 54.5% being housewives,38.5% manual workers, 3% students and 4% doctors, the 96.5% of the participants didn’t show any changes in the rhythm of the menstrual cycle, while 0.5% had a decreased rate and 3% had an increased rate from which 16.7% showed 2 days increase and 83.3% showed 5 days increase. About 91% of the participants didn’t show any changes in the duration of menses, while 0.5% experienced decreased days of the meses and 8.5% experienced increased days from which 52.9% showed 2 days’ increase and 47.1% showed 3 days’ increase. Regarding Menstrual volume 64% of the participants didn’t show any changes, while 0.5% experienced decreased volume and 35.5% experienced increased volume from which 9.9% showed 1 pad increase, 81.7% and 8.5% showed 2- and 3-days pads increase, respectively. About 78% of the participants didn’t experience any pain, while.5% had less pain that usual and 21.5% had increased pain from which 0.5% used painkiller, 1.5% increased their usual usage and 98% didn’t use any painkillers.
Conclusion: Coronavirus disease 2019 (COVID-19) vaccination is associated with mild changes in menstrual cycle (duration of the cycle, heavy menstruation and painful menstruation).