aneurysm
A thin sac caused by a weakened area in the walls of blood vessels or the heart. As an aneurysm increases in size, the sac tends to become thinner, and the risk of its breaking becomes greater.
Last Updated
October 7, 2025
October 7, 2025
Last updated: October 7, 2025.
This article was contributed by .
Explore More
What to Do When Your Pregnancy Is Unexpected
Pregnancy can be a very emotional time in your life. If you are experiencing an unplanned pregnancy, you may be feeling scared or confused about what to do. Know that many pregnancies are unexpecte...