Extending the TPB with Knowledge and Stigma to explain women's intentions to talk about menstrual-related pain

Endometriosis is a complex disease that affects roughly 10% (190 million) of reproductive age women and girls globally, from the onset of their first period (menarche) through menopause regardless of ethnic origin or social status. It is a chronic disease associated with severe, life-impacting pain during periods, sexual intercourse, bowel movements and/or urination, chronic pelvic pain, abdominal bloating, nausea, fatigue, and sometimes depression, anxiety, and infertility. There is a need for more research and awareness raising around the world to ensure effective prevention, early diagnosis, and improved management of the disease.