Around half of teenage girls experience moderate to severe period pain. The mechanical force of the uterus contracting and inflammatory chemicals such as prostaglandins contribute to this pain.

Menstruation is a natural biological process experienced by nearly half the global population. Yet, for many girls, the first period arrives as a surprise—often misunderstood, feared, or even ...

TOKYO -- A clinic helping patients as young as primary school girls who have just had their first period deal with pain and other symptoms has opened in the Japanese capital to address menstrual ...