raise its (ugly) head
From Longman Dictionary of Contemporary Englishraise its (ugly) headraise its (ugly) headif a question or problem raises its head, it appears and has to be dealt with Another problem then raised its ugly head. → raiseExamples from the Corpusraise its (ugly) head• And here's where the question of spec lists raises its head.• Another problem will begin to raise its ugly head, in the form of parasites.