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By Mayo Clinic staffAmong the factors that place you at greater risk of developing endometriosis are:
- Never giving birth to an infant
- Having endometriosis diagnosed in your mother
- Having menstrual cycles shorter than 27 days with bleeding lasting longer than eight days
- Having a medical condition that prevents the normal passage of menstrual flow
- Experiencing damage to cells that line the pelvis by previous infection
- Being white or Asian
Endometriosis usually takes several years after the onset of menstruation (menarche) to develop. When menstruation ends permanently with menopause or temporarily with pregnancy, the signs and symptoms of endometriosis stop. They can begin again after pregnancy when menstruation resumes. Rarely, hormone replacement therapy after menopause can reactivate the disorder.