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Hypervitaminosis A

  • Alternative Names

    Vitamin A toxicity


    Symptoms
    • Abnormal softening of the skull bone (craniotabes -- infants and children)
    • Blurred vision
    • Bone pain or swelling
    • Bulging fontanelle (infants)
    • Changes in consciousness
    • Decreased appetite
    • Dizziness
    • Double vision (young children)
    • Drowsiness
    • Headache
    • Increased intracranial pressure
    • Irritability
    • Liver damage
    • Nausea
    • Poor weight gain (infants and children)
    • Skin and hair changes
      • Cracking at corners of the mouth
      • Hair loss
      • Higher sensitivity to sunlight
      • Oily skin and hair (seborrhea)
      • Skin peeling, itching
      • Yellow discoloration of the skin
    • Vision changes
    • Vomiting

    Signs and tests
    • Bone x-rays
    • Blood calcium test
    • Cholesterol test
    • Liver function test
    • Blood test to check vitamin A levels