According to related information, a scholar in Japan discovered a rare disease in the 1960s, and named it “smog” because the shape of this rare disease was very similar to smoke when it was examined by imaging. In the beginning, the incidence and detection rate was very low in many local hospitals due to the backward examination equipment and the lack of professional basic knowledge of doctors. As a result, many people knew little about smog, and some had never even heard of it. In fact, smog is not far from us in our life. From the widespread use of medical imaging technology in recent years, we can clearly see that the incidence of smog is increasing. This also reminds us that we should pay great attention to it. What are the symptoms of smog before the onset of the disease? It is understood that the cause of smog is still unclear, and many experts and scholars at home and abroad are still researching and exploring. Smoke disease can be clinically manifested as cerebral ischemia or cerebral hemorrhage, and the symptoms are relatively complex. Therefore, parents should pay more attention to the symptoms in their own body, and also pay more attention to the weakness of the child’s limbs when walking or exercising, often crying, often tapping the brain, unclear language expression, etc. It is recommended to take the child to the hospital in time to rule out other diseases by CT first, and then do cerebral angiography. We recommend that you take your child to the hospital to have a CT scan to rule out other diseases and then a cerebral angiogram to further confirm the diagnosis of smog. There is no need to worry too much about smog, as it can be cured by effective surgery.