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Muscle Twitching

Muscle twitches are fine movements of a small area of muscle.

Muscle twitching is caused by minor muscle contractions in the area, or uncontrollable twitching of a muscle group that is served by a single motor nerve fiber.

Muscle twitches are minor and often go unnoticed. Some are common and normal. Others are signs of a nervous system disorder.

Deep anterior muscles

Causes of Muscle Twitching

Nervous system conditions that can cause muscle twitching:

Symptoms of a nervous system disorder include:

Home Care for Muscle Twitching

No treatment is usually needed for benign muscle twitching.

When to Contact a Medical Professional

Call your health care provider if you have long-term or persistent muscle twitches.

What to Expect at Your Office Visit

Your health care provider will take a medical history and perform a physical examination.

Medical history questions may include:

Tests depend on the suspected cause, and may include:

Alternative Names

Muscle fasciculation; Fasciculations of muscle