揭傷疤

Simplified: 揭伤疤

jiēshāngbā ㄐㄧㄝ ㄕㄤ ㄅㄚ

    • to touch on someone's deep private pain
    • to open old wounds

Character by character

Saying俗语俗語

Idiom惯用语 · In everyday use

Literally
tear open a wound scar
Meaning
To touch on someone's deep private pain. Like "open old wounds."

Sources