Pluvio Coronado
professor of Obstetrics and Gynaecology at the Universidad Complutense de Madrid, president of the Spanish Association for the Study of Menopause (AEEM)
Reading the abstract, it seems like an innovative idea, but I don't see it being successful. Firstly, because it requires menstrual blood, and not all women will have it because screening is only available up to the age of 65; secondly, because many women with hormonal IUDs (Mirena and similar devices) do not menstruate, and long-acting contraceptives are becoming increasingly popular. Thirdly, it does not work in pregnant women. And, on the other hand, there is now a trend towards self-sampling, which is minimally invasive and has a similar result to sampling by a professional.
This was already attempted with urine sampling, but it failed, and the same will happen with menstrual blood. It could be an alternative for women who do not want to manipulate their genitals for religious or other reasons and do not wish to go to the doctor. I do not see it as a method of population screening either.