godan verb (-su), transitive verb
scratch open; scratch off
Used for damaging a wound or scab by scratching, often making it worse. Common in medical or everyday contexts.
かさぶたを掻き壊してしまった。
I scratched off the scab.
傷口を掻き壊さないように気をつけてください。
Please be careful not to scratch open the wound.
Standard kanji spelling using 掻 (scratch) and 壊 (break/damage).
Mixed kanji-kana spelling; common in everyday writing.
Compound of 掻き (kaki, continuative form of 掻く 'to scratch') + 壊す (kowasu, 'to break, destroy'). The exact historical derivation is uncertain, but the meaning is transparent from its components.