A stent is a small mesh tube that's used to treat narrowed or weakened arteries in the body. Arteries are blood vessels that carry blood away from your heart to other parts of your body.
You may have a stent placed in an artery as part of a procedure called angioplasty. Angioplasty restores blood flow through narrowed or blocked arteries. Stents help prevent the arteries from becoming narrowed or blocked again in the months or years after angioplasty.
