If you or a family member or friend experiences sudden weakness, immobility or complete hemiparesis of one limb, sudden facial tilt, inability to speak or slurred speech, or sudden loss of consciousness, you need to call 120 immediately and be taken to the nearest hospital with medical care. If you get to the hospital in time, your doctor can immediately perform a cranial CT to rule out bleeding, and if you are within 4.5 hours of the onset of the disease. Intravenous thrombolysis can be performed as soon as possible, which is based on extensive scientific evidence and has been shown to benefit some patients. In the case of serious patients with blockage of large blood vessels, intravenous thrombolysis may not be effective, but in hospitals where the conditions are available, doctors can also immediately perform CT angiography or MR angiography, or insert a tube for DSA angiography to find occlusion of large blood vessels in the brain and immediately use methods to remove the embolus or place a stent to open the occluded vessel, which may avoid the above tragedy. Currently, the use of new embolization devices has been confirmed by randomized controlled clinical studies. Therefore, it is very important to get to a hospital where it is available, and time is of the essence.