EU investigates reports of menstrual disorders after mRNA COVID shots.
The European Medicines Agency’s safety committee said on Friday it was reviewing reports of heavy menstrual bleeding and absence of menstruation from women who had received COVID vaccines from Pfizer (PFE.N)/BioNTech (22UAy.DE)and Moderna (MRNA.O).
By: Reuters (https://www.reuters.com)
*Link to full article: https://www.reuters.com/business/healthcare-pharmaceuticals/eu-investigates-reports-menstrual-disorders-after-mrna-covid-shots-2022-02-11/?fbclid=IwAR0tLj_mWcZAMxphJq9KBQfD0W1AvvhOFzhtVN8qJPwNXJGwlsMF03vzHyk
The assessment was in view of reports of menstrual disorders after receiving either of the two vaccines, both based on messenger RNA technology, and it was not yet clear whether there was a causal link, the agency said.
Menstrual disorders can occur due to a range of underlying medical conditions as well as from stress and tiredness, the EMA said, adding that cases of such disorders had also been reported following COVID-19 infection.
Vaccination against COVID-19 was linked with a small, temporary change in menstrual cycle length, according to a recent study funded by the National Institutes of Health, which collected data from nearly 4,000 users of a smartphone app that tracks menstrual cycles.
But the EMA said in December it had not established a link between changes in menstrual cycles and COVID-19 vaccines, after a study in Norway suggested some women had heavier periods after being inoculated