Is it illegal to do general anesthesia without family members?

Not illegal. It is not illegal for family members of general anesthesia surgery not to accompany them. It is an emergency for the hospital to ask family members to accompany them during the operation. Family members can provide necessary information and help in time, help medical staff to better cope with emergencies, give emotional support and comfort to operators, and relieve patients' tension and anxiety. However, there is no law in our country that family members of general anesthesia surgery must accompany them.