Gastroscopy anesthesia refers to painless gastroscopy anesthesia, which is mainly administered through an intravenous route. Painless gastroscopy anesthesia refers to the administration of drugs through the intravenous channel, usually selected in the blood vessels on the back of the hand, hit with an indwelling needle, open the intravenous access, intravenous drug delivery through the indwelling needle, so that the patient enters a sleepy state, gastroscopy examination, but also the current clinical anesthesia is commonly used route. Ordinary gastroscopy in gastroscopy, will be oral local anesthesia drugs, such as lidocaine gel paste so that the drug in the oropharynx to stay for a period of time before swallowing, in order to achieve the effect of local anesthesia of the mucosa of the oropharynx, so that the oral oesophagus to the stomach of the loss of sensation or weakened, so as to carry out the gastroscopy, the examination process may be nausea, vomiting, etc., belong to the normal reaction, do not have to worry about it too much. Gastroscopy anesthesia should be carried out under the standard operation of the doctor, do not check on your own, so as not to cause harm to the body.