The verdict is in, a recent study affirms that there is indeed a causal link between vaccination once morest Covid-19 and the disturbances of the menstrual cycle observed in several women.
Since the launch of vaccination campaigns around the world, testimonials from women have multiplied relaying a series of anomalies observed during their menstrual cycle. The people affected by this phenomenon immediately pointed the finger at the vaccine, without having any plausible explanation in return. However, a study published at the end of September 2022, in the British Medical Journal, confirms the involvement of the vaccine in this disorder.
The panel observed by the researchers was subject to an average increase of one day compared to the cycles preceding the vaccination. However, the duration of prolongation was greater, by regarding three days on average, when the two doses of vaccine were administered during a single menstrual cycle.
The study notes the temporary nature of this phenomenon while affirming that a return to normal is generally observed from the following cycle. However, the anomalies taken into account by the researchers are far from being the only ones observed following the doses administered, since some women have also complained of other unforeseen events, in particular variations in menstrual flow or the onset of menstruation at day following the vaccine. Does the Covid-19 vaccine affect hormones? A question that is still topical and to which experts and laboratories have still not been able to provide a clear and clear answer.
On its website, the French Agency for the Safety of Medicines and Health Products has made the following hypotheses in an attempt to explain the anomalies mentioned:
– Reactogenicity (fever, headache, nausea, etc.) caused by vaccination. This might indeed, as during an infection, influence the hormones involved in the menstrual cycle.
– Significant stress or anxiety, caused by the act of vaccination and/or the context of a pandemic. Indeed, stress and anxiety are known factors of disruption of the hypothalamic-pituitary-ovarian axis which regulates the smooth running of the menstrual cycle.
– Other factors: underlying gynecological disease, pregnancy, contraceptive treatment.
