6 doctors weighed in:
What causes involuntary muscle spasms?
6 doctors weighed in

Dr. Amir Khan
Sports Medicine
2 doctors agree
In brief: Many causes
Muscles in our body contract and relax consciously and unconsciously.
A muscle that involuntarily contracts without our consciously willing it is called a "spasm." overuse, exercise, neck and back problems, posture, fatigue, diminished blood supply, injury, metabolite issues, and certain diseases can contribute to spasms.

In brief: Many causes
Muscles in our body contract and relax consciously and unconsciously.
A muscle that involuntarily contracts without our consciously willing it is called a "spasm." overuse, exercise, neck and back problems, posture, fatigue, diminished blood supply, injury, metabolite issues, and certain diseases can contribute to spasms.
Dr. Amir Khan
Dr. Amir Khan
Thank
Dr. Bettina Herbert
Physical & Rehabilitation Medicine
2 doctors agree
In brief: Several things
The scariest thing would be nerve damage or a systemic muscle or nerve disease.
The most common would be overuse (such as writing or running without stretching). 95% + of time it is overuse or poor posture/ alignment along with dehydration (drink enough water - include electrolytes if heavy exercise) followed by magnesium and calcium depletion. Potassium also important.

In brief: Several things
The scariest thing would be nerve damage or a systemic muscle or nerve disease.
The most common would be overuse (such as writing or running without stretching). 95% + of time it is overuse or poor posture/ alignment along with dehydration (drink enough water - include electrolytes if heavy exercise) followed by magnesium and calcium depletion. Potassium also important.
Dr. Bettina Herbert
Dr. Bettina Herbert
Thank
Get help from a real doctor now
Dr. Eric Weisman
Board Certified, Neurology
32 years in practice
9M people helped
Continue
108,000 doctors available
Read more answers from doctors