発達障害

• Reading: はったつしょうがい
• Romaji: hattatsu shōgai
• Kanji breakdown: 発達 (development; 発 = emit/start + 達 = reach/attain) + 障害 (disorder; 障 = obstacle + 害 = harm) → developmental disorder
• Pronunciation: /hat.ta.tsu.ɕoː.ɡa.i/

Meaning

Developmental disorder — an umbrella term covering ADHD, ASD, and learning disabilities, now widely discussed in Japan.

発達障害 has become one of the most discussed health topics in modern Japan. Adult diagnosis has surged as awareness grows that many people went undiagnosed in childhood. Social media accounts by people with 発達障害 sharing their experiences (当事者発信) have been hugely influential in reducing stigma. The term covers a range of conditions including ADHD, ASD (自閉スペクトラム症), and learning disabilities. Workplace accommodations and understanding remain works in progress, but the conversation has shifted dramatically toward acceptance.

Examples

1. 大人になってから発達障害って診断される人、最近すごく多い。 There are so many people lately getting diagnosed with developmental disorders as adults.
2. 発達障害は個性の一つだって考え方が広まってきたよね。 The idea that developmental disorders are just part of who you are is really spreading.
3. 発達障害の当事者が発信するSNSアカウントがすごく参考になる。 Social media accounts by people with developmental disorders sharing their experiences are super helpful.

Usage Guide

Context: healthcare, social media, workplace, education

Tone: informative, empathetic

Do Say

• 発達障害は早期発見が大事だと言われてるよ。 (They say early detection of developmental disorders is important.)
• 発達障害があっても自分に合った仕事を見つけてる人はたくさんいる。 (Plenty of people with developmental disorders find jobs that suit them.)

Don't Say

• 「発達障害っぽい」を悪口として使わない (Never use 'seems like they have a developmental disorder' as an insult — this is stigmatizing and harmful)

Common Mistakes

• Using 発達障害 as a single condition — it is an umbrella term covering multiple distinct conditions (ADHD, ASD, LD) with different characteristics

Origin & History

Medical term from 発達 (development) + 障害 (disorder). Public awareness in Japan grew significantly from the 2000s onward, with the 発達障害者支援法 (Developmental Disability Support Act) enacted in 2005.

Cultural Context

Era: 2000s awareness growth, mainstream from 2010s

Generation: All ages, awareness especially among 20s-40s

Social background: Universal

Regional notes: Used across all of Japan. The 2005 Developmental Disability Support Act was a landmark in Japanese disability policy. Adult diagnosis has become increasingly common.