In the video, a person is seen performing a surgery on a dog. The dog is lying down, and the person is using a pair of scissors to cut into the dog's mouth. The person is also using a tube to suck out the blood from the dog's mouth. The dog appears to be calm and cooperative during the procedure. The person performing the surgery is wearing gloves, indicating that they are taking proper precautions to maintain hygiene and prevent contamination. The video does not provide any information about the reason for the surgery or the type of surgery being performed. However, the person's actions suggest that they are experienced and skilled in handling animals during medical procedures.