The friends upstairs are simply ignorant and interesting. The whole process of the operating room was photographed by the camera in the operating room for reference.
If you want to take surgical photography before entering the operating room, you should communicate with the doctor, understand the patient's condition, shooting purpose and shooting requirements, and make a good shooting plan. Before entering the operating room, you must change the clothes, shoes, hats and masks in the operating room. The underwear sleeves should not be exposed, and the hat should cover your hair.
At the same time, the patient's consent should be obtained and the shooting plan should be informed.