Endometriosis-related pain starts in adolescence, but it is more common in women in their 30s and 40s.
You might be more likely to get endometriosis if you have:
- Never had children
- Early age at the onset of your menstrual periods
- Menstrual periods that last more than seven days
- Short menstrual cycles (27 days or fewer)
- A family member (mother, aunt, sister) with endometriosis
- A health problem that blocks the normal flow of menstrual blood from your body during your period