There are three types of gastroscopes: a general gastroscope, a painless gastroscope with general anesthesia, and a capsule gastroscope. The ordinary gastroscopy is actually not so terrible, there is also anesthesia is local anesthesia, I have done is waiting for a little bit of torment, in fact, when you start to do so, I went alone, with a towel on the good, there is nothing to worry about, but also not draw blood horrible. General anesthesia painless gastroscopy is not recommended, this general anesthesia is a high-risk thing, but also need to be accompanied and stay to observe the sequelae of anesthesia. The best is the capsule gastroscopy, swallowing a camera, without any feeling, is too expensive ten thousand dollars a time, but also pay attention to the poop when it picks it up or it will be a waste of money.