The causes of choking on water include physiologic factors, true bulbar palsy and pseudobulbar palsy. 1. Physiological factors: If patients drink water too quickly or drink more water each time, they may choke on water, which is a physiological factor. 2. True bulbar palsy: The causes of the disease include cerebral hemorrhage, cerebral infarction, etc., which leads to ischemia, hypoxia and necrosis of brain tissue, and the damage of the medulla oblongata involves the glossopharyngeal nerve and vagus nerve, and then the patient may suffer from choking and coughing on drinking water and difficulty in swallowing. 3. Pseudobulbar palsy: this disease is mainly due to the cortical brainstem bundle injury, so that the motor cranial nerve nucleus – suspected nucleus as well as cerebral pontine trigeminal nerve motor nucleus lost the innervation of the upper motor neurons, central paralysis occurs due to. Patients may experience choking on drinking water, strong crying and laughing, slurred speech, and lack of limb movement, which can be seen in cerebral hemorrhage, cerebral infarction, traumatic brain injury, and other diseases. Drinking water choking cough may also be caused by other reasons, if it occurs frequently, it is recommended that the patient consult a doctor in time.