chronic illness; persistent disease
Medical term for a long-standing or recurrent disease. Rare in everyday language; more commonly expressed as 持病 or 慢性疾患 in modern Japanese.
His chronic illness recurred, and he had to be hospitalized again.
Standard modern medical term for 'chronic disease'. 旧痾 is an older, literary equivalent.
Kanji form using 旧 (old) and 痾 (chronic illness). Rare and literary; primarily found in medical or historical contexts.
Variant kanji form using 久 (long time) instead of 旧. Even less common than 旧痾.
Composed of 旧 (old, former) or 久 (long time) and 痾 (chronic illness). The exact historical derivation is uncertain; the spelling is conventionally associated with the meaning of a persistent disease.