After anesthetics are used in the human body, it is a temporary inhibition of the body, in general, there is no effect, but the drug is three parts poisonous, the key is how to use, whether the use of reasonable. Nowadays, the safety of anesthetic drugs commonly used in the clinic is very high, as long as the regular and normal use of general will not have obvious side effects, but sometimes because of the patient’s condition may aggravate the condition, such as the patient is particularly weak or itself some other comorbidities, may affect the recovery process after anesthesia, which is actually not a side effect problem.