Severe stenosis of the right middle cerebral artery m1 segment can be treated with interventional therapy and medication to avoid further deterioration of the condition. If severe stenosis of the m1 segment of the right middle cerebral artery is detected during the examination of intracranial blood vessels (e.g., cranial magnetic resonance angiography or angiography), interventional therapy or conservative treatment with medication should be considered under the guidance of a physician. Interventional therapy usually involves balloon dilatation + stent implantation, which is relatively safe without craniotomy and is less traumatic. However, all surgeries have risks and complications, so patients and their families should carefully consider whether they can accept the risks and make a choice. Conservative treatment with medication usually involves the use of antiplatelet drugs such as aspirin, lipid-lowering drugs such as atorvastatin, nutritive drugs such as piracetam, and circulatory drugs such as flunarizine, as prescribed by the doctor. In the case of severe stenosis of the right middle cerebral artery (m1), it is recommended to consult a doctor for treatment.