The human body’s swallowing function is governed by the linguopharyngeal and vagus nerves, so if you have difficulty swallowing or even cannot swallow, it is often related to damage to the linguopharyngeal and vagus nerves, which is clinically known as true bulbar palsy and pseudobulbar palsy. True bulbar palsy is caused by damage to the nucleus accumbens and the linguopharyngeal vagus nerve, and is often associated with brainstem infarction or hemorrhage. The clinical symptoms of pseudobulbar palsy are approximately the same as those of true bulbar palsy, but the lesions are located in the cortical brainstem bundles bilaterally, and are often the result of multiple brain infarctions, multiple brain infarctions, or brain hemorrhages. The main difference between the two is the location of the lesion. If the swallowing difficulty due to acute cerebrovascular disease is excluded by CT or MRI, it is often associated with severe pneumonia, serious infection, or severe heart failure, ionic disorders, etc., but it is often accompanied by clinical manifestations such as fever or impaired consciousness, which can be differentiated.