疳
か
ん
Meanings
1
infantile neurosis with night crying and convulsions
Traditional Chinese medicine term for a childhood disorder marked by nighttime crying and convulsions. Rare in modern medical contexts.
In the past, babies who cried a lot at night were called 'kan no mushi' (literally, 'kan worm').
2
Used in expressions like 疳に障る (to get on one's nerves) or 疳が強い (short-tempered). Often written in kana.
See also: 癇
His way of speaking got on my nerves.
That child has a short temper and gets angry quickly.