Air embolism has a rapid onset and symptoms usually appear within a few minutes. Air embolism is an embolism caused by a certain amount of air (more than 10 ml) entering the venous system within a short period of time, through the central vein to the right atrium, right ventricle, and pulmonary artery, which usually has a sudden onset and rapid development, and can lead to severe shock and a high mortality rate. The early stage of air embolism may manifest as loss of consciousness with or without convulsions, or sudden onset of irritability, dyspnea, cyanosis, and severe pain in the chest and back, which can rapidly go into severe shock. It is commonly seen in cases of uterine rupture, hysteroscopic surgery, cesarean section, abortion and laparoscopic surgery, as well as cranial surgery and jugular venipuncture. Air embolism can occur in both arteries and veins, and the clinical presentation is atypical and easily missed and misdiagnosed. If detected early and managed with timely and appropriate measures, most of them can improve the prognosis.