What Your Tongue Can Tell You About Your Health: 4 Symptoms You Shouldn’t Ignore

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  • 4. Purple or Dark-Colored Tongue

    Possible Cause: Circulatory Issues, Cyanosis, or Riboflavin (Vitamin B2) Deficiency

    A purplish or bluish tongue may signal reduced oxygen circulation (a condition known as cyanosis) or a possible vitamin B2 deficiency. In some cases, it can also occur temporarily due to cold weather or certain foods.

    Common Causes:

    • Cold exposure or vasoconstriction

    • Respiratory problems such as asthma or COPD

    • Cardiovascular issues like heart failure

    • Deficiency of riboflavin (vitamin B2)

    Symptoms:

    • Purple, blue, or dark discoloration of the tongue

    • Cold hands and feet

    • Dizziness or fatigue

    • Breathing difficulties (in severe cases)

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