The reasons for yawning all the time after a stroke are mainly related to lack of sleep, medication reasons, and insufficient blood supply to the brain. 1. Lack of sleep. After a stroke, if the patient does not have enough sleep for a long time, the brain does not have enough rest, and symptoms such as yawning may occur. 2. Medication reasons. If the patient is taking sedative sleep drugs, such as diazepam, clonazepam, alprazolam and so on, there will be after-effects, manifested as sleepiness and yawning. 3. Insufficient cerebral blood supply. After the stroke, the cerebral blood vessels may still exist in the cerebral vascular stenosis, cerebral blood supply is insufficient, there is ischemia and hypoxia, the patient will appear to have been yawning symptoms. Disease aggravation may also appear frequent yawning symptoms, should consult a doctor in time. There are many other causes of yawning after a stroke, it is recommended to go to the hospital in a timely manner, to clarify the cause of the disease and to give targeted treatment, to avoid blindly using their own medication.