Frequent choking on water may be a common complication in stroke patients, and is clinically classified as true globe palsy or pseudobulbar palsy. True bulbar palsy is caused by damage to the medulla oblongata swallowing center, which results in choking and coughing when swallowing and loss of the gag reflex, while pseudobulbar palsy is caused by damage to the corticobulbar tract and corticospinal tract bilaterally after multiple lacunar infarctions. However, because the linguopharyngeal nerve and vagus nerve are not completely damaged, the gag reflex is still partially preserved, so the patient will show a prolonged gag reflex and impaired movement of the muscles in the pharynx, including the epiglottis, so that if the patient eats slowly or eats solid food, it is not easy to choke and cough, but if it is liquid, it is easy to choke and cough.