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Periodic Paralysis Syndrome Causes & Risks


Periodic paralysis is a congenital condition, meaning it is present from birth. Familial periodic paralysis is inherited, but may occur without a known family history. Periodic paralysis is caused by abnormalities of the electrolyte channels on muscles.

The inherited form of the disorder is autosomal dominant, which means that only one affected parent is needed to transmit the gene to the baby. When one parent is affected, the child has a 50% chance of getting the disease. Rarely, the condition occurs as a result of a noninherited genetic defect.

Genetic Material

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Risk Factors

These factors increase your chance of developing periodic paralysis. Tell your doctor if you have any of these risk factors:

  • Family history of periodic paralysis
  • Thyroid disorder (particularly in Asian males)

Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition. Copyright © 2020 EBSCO Publishing All rights reserved.

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