Symptoms and signs of brainstem hemorrhage

Written by Gao Yi Shen
Neurosurgery
Updated on May 03, 2025
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The symptoms and signs of brainstem hemorrhage must be judged based on the situation. There are many nerve fibers in the brainstem, and bleeding in any area could lead to different clinical manifestations. The most common general symptoms include headache, nausea, dizziness, vomiting, and numbness and weakness in the limbs, and even conditions such as drowsiness, stupor, and even coma may occur. If more severe, it could cause abnormal rhythms in heart and respiratory functions, and some special symptoms might appear. For example, hemorrhage in the midbrain might cause bilateral pupil constriction, especially pinpoint constriction; if the hemorrhage occurs in the medulla, it could cause respiratory and circulatory arrest early on.

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Written by Chen Yu Fei
Neurosurgery
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Is brainstem hemorrhage prone to recurrence?

Bleeding in the brainstem area, if not well controlled and treated, is very prone to recurrence. In most cases, considering that patients have underlying diseases such as hypertension and diabetes, and do not control their blood pressure and blood sugar well, resulting in prolonged high levels of blood pressure and blood sugar, such conditions can easily lead to the recurrence of brainstem hemorrhage. Therefore, it is recommended to monitor blood pressure in the morning and evening, take antihypertensive medications on time, and keep the patient's blood pressure within a relatively stable range. Additionally, it is suggested to follow a light diet, low in salt and fat, and to regularly revisit the local hospital for a thorough monitoring of the patient’s vital signs.

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Written by Chen Yu Fei
Neurosurgery
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How to exercise balance after brainstem hemorrhage?

For patients with brainstem hemorrhage who exhibit significant limb motor dysfunction and reduced sense of balance, it is recommended to seek treatment at a well-known local tertiary hospital. Experienced rehabilitation therapists should assess the current condition and develop an individualized rehabilitation exercise plan based on the patient's condition. Gradually, they should begin exercise training, including training for limb balance capabilities. Patients who actively and effectively engage in exercise therapy often achieve good therapeutic effects, with gradual restoration of balance and strengthening of limb motor function, achieving relatively satisfactory treatment outcomes.

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Written by Gao Yi Shen
Neurosurgery
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The acute phase of brainstem hemorrhage lasts for several days.

The acute phase of brainstem hemorrhage generally lasts about two to three weeks, or 14 to 21 days, but it also needs to be specifically assessed based on the different conditions of the patient. If the hemorrhage in the brainstem is relatively severe and located in an important functional area, then the critical period may be appropriately extended. For example, if the hemorrhage is in the medulla oblongata and has already caused respiratory and circulatory failure, as well as unstable vital signs and a comatose state, then the critical period could even reach about one to two months, because it is often necessary to use a ventilator to assist breathing, and the patient's comatose state does not allow for full consciousness. However, for some brainstem hemorrhages, such as a small hemorrhage in the pons that only causes the clinical symptom of headache in the patient, the critical period is generally no more than two weeks. Thus, each patient's condition is different.

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Written by Gao Yi Shen
Neurosurgery
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Precursor warnings of brainstem hemorrhage

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.

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How long does it take for a brainstem hemorrhage clot to be absorbed?

In general, the absorption time for a brainstem hemorrhage clot is around two to three weeks. During this period, several phases must be passed, with the two main ones being the rebleeding phase and the brain swelling phase. Rebleeding often occurs within three days after the initial bleeding. If not treated promptly during this time, it can easily lead to further brainstem hemorrhage, increasing the size of the clot and hindering the later absorption process. The second phase is the peak of brain swelling and vasospasm. During this phase, certain substances released during the absorption of blood vessels and clots can cause swelling and spasms of the surrounding tissues. If this phase is also safely navigated, then subsequent absorption tends to be relatively quicker. However, complete absorption generally requires at least two to three weeks.