The warning signs of brainstem hemorrhage must be analyzed according to the situation. Clinically, many people have induced brainstem hemorrhage due to straining during defecation or becoming emotionally agitated during arguments. It is quite common for someone to suddenly collapse and become unconscious after an argument, which is likely indicative of a brainstem hemorrhage.

Additionally, one may experience severe headaches without any obvious triggers, along with numbness or weakness in the limbs and speech impairments.

Furthermore, signs of coma often appear. If a patient's coma is accompanied by pinpoint pupils, it is crucial to get them to a hospital for appropriate examinations immediately, as this is very likely a precursor to brainstem hemorrhage.