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In rare cases, onychoschizia is actually caused by malnutrition. Mostly, the main cause is a deficiency of iron or anemia. But, onychoschizia can also be caused by a wide variety of vitamin deficiencies. This is why you should talk to your doctor about underlying conditions if you have onychoschizia.
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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.