Cerebral edema after cerebral hemorrhage surgery generally can be eliminated in 10~15 days, the specific time needs to be judged according to the patient’s recovery. Cerebral edema after cerebral hemorrhage surgery is a common clinical complication of the surgery, and patients do not need to worry too much. Cerebral edema usually occurs 3~5 days after surgery and reaches its peak in 7~10 days, then the edema gradually improves and usually subsides on its own in most patients in about 10~15 days after surgery. However, due to the large individual differences between different patients, the specific time for the cerebral edema to subside cannot be generalized. Some patients who have less brain hemorrhage and recover faster after surgery may recover in about 7 days. Some patients with more brain hemorrhage and poorer physical condition may take about 15~21 days to recover. To sum up, the time for cerebral edema to subside after brain hemorrhage surgery is not fixed, but patients do not need to worry too much. If the patient’s cerebral edema lasts for a long time, he/she can use dehydrating agents to promote the edema to subside under the instruction of doctor.