can you wake up from coma after cerebral hemorrhage? how long does it take to wake up?

how many days it will take to wake up from a coma after cerebral hemorrhage cannot be generalized. it is related to the amount of bleeding and the location of the bleeding. generally, if the amount of bleeding is less than two milliliters and it is not in a key part, it will not cause coma; if the amount of bleeding is huge and it is in a key part, it may cause a long-term coma.

1. bleeding volume:

1. the amount of bleeding is small: if the amount of bleeding is not large, less than 30 ml, patients with hemispheric coma can wake up in about 1 week as long as the edema is stable. the edema is usually severe in 3-5 days. patients with minor cerebral hemorrhage may even wake up in about 30 minutes;

2. large amount of bleeding: if it is brain dysfunction caused by massive cerebral hemorrhage, such as the bleeding volume in the cerebral hemisphere is 40-50ml or the bleeding volume in the brainstem is more than 10ml, it will affect the patient's recovery time, which may usually be 2- it generally does not get better easily after 4 weeks or more, and recovery needs to occur after the hematoma is absorbed.

2. degree of brain damage:

1. mild patients: if the patient's cerebral hemorrhage is minor, the amount of bleeding is small, and the degree of brain damage is minor, the patient may wake up within 30 minutes;

2. more serious patients: if it causes cerebral herniation, severe brain tissue damage, hydrocephalus, and complications, such as infection, etc., under the conditions of controlling the complications, stabilizing electrolytes and infection, it may be possible within half a year. will gradually wake up;

3. patients in chronic coma: some patients have brainstem hemorrhage or massive cerebral hemorrhage, which may affect the brain's sleep-wake cycle. for example, the fan-shaped brainstem activation system mainly maintains brain wakefulness. if damaged, it may cause the problem of inability to wake up. if the patient has severe damage to the cerebral hemisphere, he may be in a coma. if he cannot wake up for more than 3 months, he may be in a chronic vegetative state with a low probability of waking up. only a small number of patients may wake up in the next six months, a year, or even more than a year, and gradually transform into a state of minimal cognitive dysfunction, and then gradually wake up.

cerebral hemorrhage refers to bleeding caused by non-traumatic rupture of blood vessels in the brain parenchyma. the cause is mainly related to cerebrovascular disease, that is, it is closely related to hyperlipidemia, diabetes, hypertension, aging of blood vessels, smoking, etc. patients with cerebral hemorrhage often develop symptoms suddenly due to emotional excitement and strenuous exertion, and the early mortality rate is very high. most survivors have sequelae such as varying degrees of movement disorders, cognitive impairments, and speech and swallowing disorders.

generally speaking, whether it will last long or not depends on whether the intracranial bleeding has stopped or has been absorbed. it is better to go to the hospital for detailed consultation about the specific situation.