COVID-19: What you need to know
Featured conditions Brain tumor, breast cancer, colon cancer, congenital heart disease, heart arrhythmia. See more conditions.
Featured conditions
Subscribe to Housecall
Our general interest e-newsletter keeps you up to date on a wide variety of health topics.
In a healthy pregnancy, the fertilized egg attaches itself to the lining of the uterus. In an ectopic pregnancy, the egg attaches itself somewhere outside the uterus — usually to the inside of a fallopian tube.
Mayo Clinic does not endorse companies or products. Advertising revenue supports our not-for-profit mission.
Check out these best-sellers and special offers on books and newsletters from Mayo Clinic.