Anesthesia is safe. Many people are more afraid of anesthesia than of the surgery itself. This is a normal reaction, since the patient is not in control in this situation. However, this fear is not based in reality because modern anesthetic techniques are extremely safe.
Anesthesia is a very controlled use of drugs to block certain body functions, such as muscle contraction, consciousness, and pain. These drugs can be reversed by other drugs or by stopping their infusion into the veins. While a patient is under anesthesia, all vital body functions are monitored, including EKG, blood pressure, blood-oxygen level and the amount of carbon dioxide in the breath.