Endovascular coil embolization is a minimally invasive procedure used to treat vascular malformations, aneurysms, or bleeding blood vessels by inserting embolization coils through a catheter. The coils block the blood flow to the affected area, preventing rupture and controlling bleeding.

This technique is commonly used in treating brain aneurysms, arteriovenous malformations (AVMs), and gastrointestinal bleeding, offering a less invasive option than traditional surgery.