U+766A "癪" CJK Unified Ideograph-# Unicode Character

U+766A "癪" CJK Unified Ideograph-# is a Chinese character that primarily refers to a condition of muscle spasm or cramp, often associated with a sudden, involuntary contraction, and in traditional Chinese medicine and historical usage, it can denote a type of hysteria or a pain from an obstruction of vital energy, such as a stomach cramp or painful spasms. The character is composed of the radical for illness or disease, 疒, combined with the phonetic component 責, which hints at a sense of blame or pressure, reflecting the idea of a bodily affliction tied to internal stress. While not commonly used in modern everyday writing, it appears in classical Chinese medical texts and remains recognized in certain dialects and specialized vocabulary for describing physical discomfort.