Blue lips
Lips that are cyan in color mean that the lips lose their ruddy luster and appear cyan, lilac, or dull purple. If the lips appear bruised for a long time, modern medicine will call it "purple cyanosis", which indicates that there may be a problem in your heart, so you should go to the hospital for a long-term examination. Some diseases of the respiratory system can also cause lip gloss and rosy changes.
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