What causes spasms in a person’s leg?

Dr. Ordway discusses what causes spasms in a person’s leg. Click play to watch the video or read the transcript.


Muscle spasms are caused by nerves that malfunction, according to the National Institutes of Health (NIH).

Nerves malfunctioning, according to the NIH, can be caused by:

  • Dehydration
  • Lack of minerals in your diet
  • Muscles not getting enough blood
  • Spinal cord injury 
  • Straining or overusing a muscle

Cramps can be painful, but once the muscle relaxes, the pain will ease, according to the NIH.

Talk to your doctor for more information about what causes leg spasms.

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