Mild cerebral infarction is not allowed to smoke even after healing. Mild cerebral infarction generally refers to lacunar cerebral infarction with mild clinical symptoms, and some patients even do not have any clinical symptoms. The general manifestation is often a mild sense of weakness in the limbs, or a slight numbness. Imaging examination of cerebral infarction foci are small in size, usually within 2cm in diameter. After treatment, most of the patients’ symptoms can disappear completely without any sequelae, but after reviewing the imaging, no matter how long it takes, you can see a soft spot in the infarcted area, which can’t be eliminated, and the probability of recurrence of cerebral infarction will be relatively increased after a history of cerebral infarction. Smoking is an independent risk factor for cerebral infarction, and even if the patient does not have underlying diseases such as hypertension and hyperglycemia, prolonged smoking has the risk of inducing cerebral infarction. If a patient already has a mild cerebral infarction and continues to smoke, the risk of recurrent cerebral infarction is very high. If the next infarction is a critical infarction, or a larger infarction, it may cause severe limb movement disorders, leading to hemiplegia and hemiplegia.