Timing Of COVID-19 Shot Can Affect Menstrual Cycle Length: Study

The study identified how the timing of vaccination is specifically linked to changes in the length of the menstrual cycle. (Credit: Image by Freepik)

Timing of COVID-19 vaccination is associated with slight, temporary changes in the length of the menstrual cycle, a recent study revealed.

Although the association between the COVID-19 vaccine and menstrual cycle length was previously known, researchers now found more evidence of the link and identified how the timing of vaccination is specifically linked to changes in the length of the menstrual cycle.