Trouble or disaster originating from within one's own group or family, referring to internal conflict rather than outside threats, from a passage in the Analects referring to a screen wall inside a palace [[萧墙|蕭牆|xiao1 qiang2]]

Disaster originating from within one's own home or country; internal trouble. Literally translated as "the disaster of the screen wall."

trouble breaks out from within one's own house or organization; misfortune arising at home

(idiom) civil strife or disaster breaks out within one's own internal circle; used to describe trouble originating from within a family, organization, or country

Trouble or disaster that breaks out from within one's own group; internal conflict