Four-year-old Kiki has been suffering from headaches and dizziness for half a year. At first, she thought it was because she had a pillow or a cold, so she went to the hospital several times, but soon after she was relieved, she had another headache and dizziness, and recently experts at the Capital Medical University Sanbo Brain Hospital found that the root cause of Kiki’s headaches and dizziness was the scourge of brain arteriovenous malformation. Kiki’s parents were perplexed by the recurring and unpredictable symptoms. According to Kiki’s mother, once Kiki had a headache and dizziness attack, she experienced severe pain and head sweating, mostly on the right side of her head, which could be relieved on its own after resting for a while. After admission to the hospital, an MRI of the brain revealed a 7 cm large arteriovenous malformation on the right side of Kiki’s brain. Faced with a huge range of arteriovenous malformation and the risk of rupture and bleeding at any time, embolization treatment was no longer feasible and craniotomy was necessary to remove the malformation. The 7 cm giant malformation was removed by the microscopic operation of Sanbo specialists. After the surgery, Kiki soon stopped having headaches and dizziness and was discharged from the hospital without any problems. Cerebral arteriovenous malformation is a congenital disorder caused by abnormal development of blood vessels during embryonic development, and can present with headaches, epilepsy and certain neurological dysfunctions weeks to years before the occurrence of brain hemorrhage. The diagnosis of cerebrovascular malformation is not difficult. Generally, in hospitals with neurological conditions, the diagnosis can be made by doctors with clinical experience through cerebral angiography or CT or MRI examination combined with clinical symptoms and signs. It is important to note that parents should take their children to a specialized hospital if they find that their children have frequent headaches and dizziness or have mental symptoms such as irritability and convulsions.