What is a cold snare in a colonoscopy?

A cold snare is a medical tool used during a colonoscopy to remove polyps or abnormal tissue without the use of heat. It consists of a loop made of wire that, when tightened around the polyp, allows for its excision. This technique minimizes thermal damage to surrounding tissues, making it safer and often leading to better healing. Cold snare polypectomy is particularly effective for small to medium-sized polyps.