Sequelae of cerebral hemangioma intervention include vascular embolism, hemiplegia, epilepsy and so on. 1. Vascular embolism: mainly due to the implantation of stent when performing interventional therapy, stent is a kind of foreign body, which may cause vascular embolism when implanted into cerebral blood vessels, thus inducing cerebral infarction. 2. Hemiplegia: some patients may suffer nerve damage during vascular intervention therapy, which may lead to movement disorders or even hemiplegia. 3. Epilepsy: It may be due to irregular operation of interventional therapy, resulting in damage to brain tissues or nerves, which in turn causes epilepsy, and patients are often accompanied by symptoms such as memory loss and abnormal behavior. It is recommended that patients choose regular hospitals for cerebral hemangioma interventional therapy, and need regular follow-up after the operation. If any of the above situations, they should seek medical treatment in time and under the guidance of physicians.