Medical examinations in Japan

One page per examination. Each covers what the test detects, who Japan offers it to and how often, what it cannot settle, and the primary sources behind every claim.

Examinations are grouped by how they sit in Japan's screening system. That is a question of what backs each test — not of how much it matters to you. A statutory screening can be widely ignored, and a popular scan can rest on thinner evidence.

Part of a national screening programme

Named in a Ministry of Health, Labour and Welfare screening directive, or run under a specific statute. Inclusion rests on evidence of benefit at population level.

Mammography in Japan · Nyubo X-sen kensa / mammography
How breast X-ray screening works in Japan — who it is offered to, what it detects, and what it cannot.