Among the most widespread consequences found are the early or late onset of menstruation or abundant, scarce flow, menorrhage or amenorrhea. To date, however, there is no scientific confirmation on the correlation between the anti Covid-19 vaccine and alterations of the menstrual cycle. The episodes reported, moreover, were temporary and no intervention was necessary from a clinical point of view. Some researchers have conducted research in order to verify if there is a link between disorders related to the menstrual cycle and vaccines. today no ailments have found scientific confirmation. It is useful to underline how many changes in the menstrual cycle, when they occur temporarily and resolve spontaneously, should not cause particular concerns, as they do not in any way indicate that there is a risk of damage to the "reproductive system.
and in the immune cells engaged in the fight against the virus. Even the uterus, in fact, has tissues composed of immune cells, like many other parts of the body, which have a barrier function against potential pathogens that attack the organism. Not only that, in the case of the cells that line the inner walls of the uterus, ie the endometrium, they determine the thickness of the walls that grows during the window of greater fertility and decreases if the egg has not been fertilized, with the appearance of menstruation, and therefore blood loss.
The anti Covid-19 vaccine, in this sense, is able to stimulate the activity of the immune system. This would result in a temporary irregularity of the cycle, in the onset of menstruation, in the duration and intensity of blood losses, but also with other mechanisms of our organism that depend on the activity of the immune cells.
, can trigger an inflammatory state that interferes with the timing of ovulation which can therefore change according to the health conditions of each individual woman. Even when you have a fever, for example, you can have more painful menstruation, precisely because of the ongoing inflammatory state. In the past, however, a link has been highlighted between the influenza vaccines and those against the HPV virus (papilloma virus) and the menstrual cycle, with the occurrence of mild and temporary disorders. The studies have not given scientific confirmation of no long-term effects and problems related to fertility and the ability to conceive.
Vaccines and fertility
For some time there has been debate on the link between vaccination against Covid-19 and pregnancy with assisted fertilization. The indications of the health authorities are addressed to the evaluation of individual cases, in the absence of specific data in the vaccine trials available.
The European Society of Human Reproduction and Embryology (Eshre) a few days ago specified how "there is a lack of information on the possible effect of COVID-19 vaccination on assisted reproductive treatment or on future pregnancy. As a result, it is not possible to provide general recommendations on whether men and women who attempt to conceive through assisted reproduction can receive the vaccine before starting treatment. " L "Eshre stressed that" for women with comorbidities that put them at greater risk of COVID-19 and / or pregnancy complications, encouragement to vaccinate before attempting conception should be considered. The same is true for women. women in whom the risk of exposure to "SARS-CoV-2 infection is high and cannot be avoided". Regarding the best timing "there are different points of view on the hypothesis of postponing conception after vaccination. It seems prudent to do this for at least a few days after the completion of the vaccination (ie after the second dose) to allow time for the immune response to stabilize ".
in moderate quantities there does not seem to be a dangerous relationship.
