Condition guides
Plain, sourced explanations of how each condition is typically thought through in Japan — written by the neurosurgeon you’d be talking to, not a content team. They are general information, not a diagnosis: the aim is to help you ask better questions of the doctor who examines you.
Moyamoya disease
Where Japan’s long experience with bypass surgery genuinely shapes the decision — and when watchful waiting is the honest answer.
Unruptured brain aneurysm
How size, location and the UCAS‑Japan data feed a decision that is rarely as urgent as the fear it creates.
Trigeminal neuralgia
When medication has stopped working, and what the surgery that treats the cause actually involves.
Hemifacial spasm
The involuntary twitch that starts around the eye — and the operation that addresses its cause.
Brain tumor
How type, location and grade shape whether to watch, operate, or combine treatments.
Brain AVM
Weighing the risk of a bleed against the risk of treatment, with the ARUBA debate in plain view.
Dural arteriovenous fistula
Why the drainage pattern, not the name, is what decides how urgently a dAVF is treated.
Carotid artery stenosis
Symptomatic versus asymptomatic, and how surgery and stenting are chosen in Japan.
Spinal cord tumor
How intramedullary versus extramedullary changes almost everything about the plan.
Chronic subdural hematoma
A slow bleed after a minor knock — often very treatable, sometimes recurrent.
Life after stroke
What the months after a stroke can look like, and how Japan’s rehabilitation system carries a patient through.
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