Brain hemorrhage can be absorbed naturally, regardless of whether it is a large or small amount, but there is a transformation process. In terms of time, brain hemorrhage is certainly easily absorbed in small amounts and relatively slowly absorbed in large hemorrhages. The amount of brainstem hemorrhage is usually 5-6 ml, but the brainstem is a more important and dense piece of the brain center where all functions may be involved, so even 5-6 ml of hemorrhage can lead to its loss of function and easily lead to a vegetative state. Therefore, it is not true that the patient will get better once the hemorrhage is absorbed, because the brainstem is an important functional area and all functions of the human body pass through the brainstem, so it takes a longer time to recover brain functions after brainstem hemorrhage, and one cannot expect that the condition will improve significantly once the brain hemorrhage is absorbed.