Period pains.

The article discusses the reasons why additional research should be conducted regarding the safety of menstrual products like tampons, pantyliners, underwear, and cups. also cited are the number of women undergoing menstruation worldwide, the study by the Korean Women's Environmental Network showing that more than 3,000 women experienced symptoms like worsened cramps and shorter periods when using said products, and the major producers of said products like Procter & Gamble.