After the painless removal of the uterus anesthesia will have a certain amount of pain, analysis of the following reasons: First, anesthesia applies to local anesthesia, that is, in the process of surgery by playing anesthesia, blocking the sensory nerves of the conduction function, so that women in the process of the operation will not produce pain, but once the end of the operation, the anesthesia of the role of the time past, that is, when women wake up will produce pain, because at this time the drug has been not be able to block the sensory nerves, to the cerebral cortex conduction of pain, so women will have a certain amount of pain after the clearance of the uterus. Second, after the operation, women will have certain trauma, because in the process of purging the uterus, will be on the female uterus, vagina, ovaries and fallopian tubes, etc., these parts of the trauma and bleeding, only in the process of the operation through the anesthesia to block the function of the nerves, temporarily stopping the pain, when the anesthesia of the effective time has passed, the women will have a painful feeling.