Multiple testimonies evoke anomalies of the rules cycle after a vaccination against the covid, but the health authorities have not, for the time being, established a cause and effect link.
Le Monde with AFP
The women concerned by menstrual disorders that appeared after vaccination against the COVVI-19 are invited to declare them, asked, Tuesday, July 19, the Medicines Agency (ANSM), in a context of uncertainty on a link direct between vaccines and these disorders. Declarations can be done on The portal of the Ministry of Health . Women who feel disorders are asked to provide “the most detailed information possible in the declaration form”.
The ANSM has put online a Guide Declaration assistance as well as tutorials for patients and health professionals. The elements collected must allow “regional pharmacovigilance centers to carry out their evaluation of the declared cases as effective as possible,” she explains.
The menstrual disorders declared after vaccination by a messenger RNA vaccine, that is that of Pfizer-Biontech and Moderna, are the subject of attentive monitoring at national and European level since their detection, the agency recalls.
Multiple testimonies evoke the appearance of disorders after an anti-Cavid vaccination, but the health authorities have not yet established any cause and effect.
more than 10,000 Declarations of the brought cycle disorders
In April 28, the regional pharmacovigilance centers analyzed 9,381 declarations of cycle disorders reported with the PFIZER vaccine, and 1,557 with the Moderna vaccine, reports the ANSM. The majority of these declarations were made by patients directly, specifies the agency. At that date, 58 million injections had been carried out for women with the PFIZER vaccine, and 12 million with that of Moderna.
At this stage, undesirable events are most often “non -serious” and generally manifest in two ways: by abnormal bleeding (metrorrhagia, menorrhagia), and by rules of rules or amenorrhea, underlines the agency medication.
To date, the available data do not make it possible to describe the mechanism of occurrence of these disorders of the menstrual cycle, she adds.
However, it cites several hypotheses such as reactogenicity (fever, headache, nausea, etc.) caused by vaccination which could, as during an infection, influence the hormones involved in the menstrual cycle. Or even an important stress, engendered by the act of vaccination, likely to disturb the hypothalamo-pituitary-ovarian axis which regulates the smooth running of the menstrual cycle.