好了伤疤忘了疼

Traditional (Taiwan): 好了傷疤忘了疼

hǎoleshāngbāwàngleténg ㄏㄠˇ ˙ㄌㄜ ㄕㄤ ㄅㄚ ㄨㄤˋ ˙ㄌㄜ ㄊㄥˊ

    • to forget past pains once the wound has healed (idiom)

Character by character

Saying俗语俗語

Idiom惯用语 · In everyday use

Literally
once the scar has healed, forget the pain
Meaning
Criticises someone who, once out of trouble, forgets the lesson or the help they received and repeats the mistake.

Sources