Brain stem hemorrhage is subject to recurrence, and the symptoms are worse and more dangerous after recurrence. Brain stem hemorrhage is characterized by high disability rate, high recurrence rate and high mortality rate. Pre-existing risk factors such as hypertension, hyperglycemia, hyperlipidemia, overweight, etc., are not well controlled and mostly appear when emotional or exertional. Brain stem hemorrhage is one of the most dangerous conditions among brain hemorrhage, which can cause respiratory and cardiac arrest leading to life arrest at any time. Common symptoms include weakness of limbs, sensory impairment, dizziness, headache, nausea, vomiting, unfavorable speech, crooked mouth and eyes, etc. In severe cases, coma or even death may occur. After having suffered from brainstem hemorrhage through the dangerous period, secondary prevention should be actively carried out to prevent the re-occurrence of the disease. The methods of prevention include light diet, moderate exercise, maintaining emotional stability, not staying up late or straining, and low salt, low fat, and low sugar diet to prevent the occurrence of re-bleeding.