Japan

~1,400,920 circumcisions, all ages (US insurance claims data)

Total adverse events under 0.5%; serious AEs ~0.0008%–0.07%. Crucially, AE rates 10–20× higher when done AFTER infancy (ages 1–9) than neonatally — directly relevant where boys are cut older (e.g. PH tuli at ~8–12).

Voluntary medical male circumcision, ages 10–14, trained providers

Severe adverse events on the order of 1–3 per 100,000 — but ONLY with trained providers, quality assurance and informed consent. The benchmark for what safe, supervised provision looks like; the opposite end from informal provision.

Cases reported to WHO, 2014–2018

WHO logged 32 urethral-fistula cases (2014–2018) and, in one tetanus consultation, 8 deaths among 12 associated cases. Illustrative of rare-but-severe harms in unhygienic settings — not a national rate.

Traditional vs physician providers

One Turkish series found 85% complications with traditional providers vs 2.6% with physicians; a Kenyan one 35% vs 17%. Provider setting dominates outcomes — the pattern behind warnings about informal practitioners everywhere.

American Academy of Pediatrics task force

Benefits said to outweigh risks but “not great enough” to recommend routine circumcision — leaving the decision to families. The reference point invoked on both sides of the consent/necessity debate.

Inpatient neonatal circumcisions, 2001–2010

200 early deaths over ten years among 9.83 million inpatient neonatal circumcisions — explicitly correlational, NOT causal. A measured counterpoint to higher litigation-cited estimates.