Muscle crampsDefinition Muscle cramps are involuntary and often painful contractions of the muscles which produce a hard, bulging muscle. Muscle twitching (fasciculation) is the result of spontaneous local muscle contractions that are involuntary. Typically, these contractions only affect individual muscle groups connected to (innervated by) a particular motor neuron. This twitching does not cause pain. Considerations Ordinary muscle cramps are common and may be stopped by stretching the affected muscle. Muscle twitches are minor and often go unnoticed. Some are common and normal, while others indicate a neurologic disorder. Common Causes Muscle spasms can cause cramps and are usually brought on by the following:
More serious causes of fasciculations -- such as motor neuron disease, muscle diseases, or denervation -- are usually accompanied by weakness and atrophy of the affected muscle group, as well as other signs and symptoms. Home Care Slow stretching often brings relief. Follow prescribed therapy. Call your health care provider if
What to expect at your health care provider's office Your health care provider will obtain your medical history and will perform a physical examination. Medical history questions documenting your muscle spasms may include the following:
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