A little deformity or damage can be summarized by a four-word idiom.

There is a fly in the ointment in the ointment in the near sense, and there is no cover in the far sense.

Antisense is flawless.

There are some small spots on the white jade. For example, a good person or thing has some minor shortcomings and fly in the ointment.

The source is Xiao Tong's Preface to the Collection of Tao Yuanming in the Southern Dynasties: "White jade is slightly flawed, only in poetry."

Even the cleverest person sometimes nods, but this little problem is just that.