It didn't hurt during the operation. When I went to see Director Zhang Xiaotian for surgery, I used general anesthesia intubation. It's safe and I don't feel anything, but after anesthesia, it will definitely hurt. I couldn't eat well the other day, so I had to drink some liquid food. Fortunately, the nurse was very kind and patient and took good care of me during my stay in hospital. Now the operation is very effective, and the whole temperament has changed. As for the influence of age, I think it should be small. Usually well maintained, without too much concern.