A condition in which the fertilized egg attaches to the wall of the fallopian tube or elsewhere outside the womb and begins to develop but cannot survive. Ectopic pregnancy poses a serious risk to the health of the mother.
- Previous ectopic pregnancy
- Tubal damage from infection or surgery
- History of infertility
- Therapy for in vitro fertilization
- Increased age
- Smoking
- Prior pelvic infection
- DES exposure
- IUD use
- Pregnancy conceived by assisted reproduction.