养痈成患
yǎng​yōng​chéng​huàn

leaving evil unchecked spells ruin

  1. 养 養 yǎng verb
    to raise
    to keep or feed animals; to keep pets
  2. 痈 癰 yōng
    carbuncle
    A severe skin infection involving a cluster of boils, typically characterized by redness, swelling, and multiple pus-filled openings; often caused by bacteria like staphylococcus.
  3. 成 chéng verbparticle
    to become
    to become; to turn into; to change into
  4. 患 huàn adjectivenoun
    misfortune
    (bound form) disaster; calamity; peril; trouble