Birth Control: Spermicides

Spermicides help prevent pregnancy by killing sperm before they can enter the uterus. Read on to learn more.

Hepatic Angiography

Hepatic angiography uses X-rays to check the blood vessels that supply blood to your liver. Here's what you need to know if you are having this procedure.

How Birth Control Works

Birth control prevents pregnancy by preventing conception. Some methods prevent an egg from maturing. Some keep the sperm and egg from meeting. And some methods work in both ways.

Understanding Conception

Pregnancy begins when a woman's egg and a man's sperm join. This is called conception or fertilization.

Catheter Embolization

Embolization is a procedure to block a blood vessel. It is done to stop severe bleeding. Or it is done to stop blood flow to a part of the body. To do this, a catheter (thin, flexible tube) is put into a blood vessel through a small incision. It is often done by a healthcare provider called an interventional radiologist. This procedure may be done alone, or with surgery or other treatment.