Cautery in surgery is a surgical technique that is frequently used to remove unwanted or harmful tissue. It is also capable of burning and sealing blood vessels. This aids in the reduction or cessation of bleeding during surgery or following an injury. It's a risk-free method. It is also known as Electrocauterization or electrocautery. The cautery machine is used for cautery. There are many types of Electrocautery machine such as  bipolar cautery, monopolar cautery, rf cautery etc.