Patients with brainstem hemorrhage are likely to have excessive sputum in the late stage due to combined lung infection, which is mainly caused by factors such as prolonged bed rest, swallowing function abnormality, and decreased resistance, etc., and need to strengthen airway management and carry out sputum expectoration treatment. Brain stem hemorrhage is easy to cause patients to have consciousness disorder, and easy to complicate neurogenic pulmonary edema, often need to be bedridden for a long period of time, and the patient’s cough reflex is reduced, or even disappeared, which is easy to lead to the pneumonia, thus showing the symptom of profuse sputum. In addition, patients with brainstem hemorrhage are prone to swallowing function abnormality, easy to choke on water, difficult to swallow, so the secretions in the mouth and vomitus are easy to cause aspiration, triggering aspiration pneumonia, which may show symptoms of phlegm. In addition, patients with brain stem hemorrhage have low resistance, coupled with impaired consciousness, dysphagia, etc., which often leads to insufficient nutritional intake, and can easily cause bacterial, viral and other microbial infections, and when disease-causing microorganisms invade the lungs, it leads to infectious pneumonia, and the patient may have symptoms such as profuse sputum, fever, etc. It is recommended that the patient actively cooperate with the doctor for treatment. Patients are advised to actively cooperate with the doctor for treatment, follow the doctor’s instructions for medication, and inform the doctor immediately if discomfort occurs.