Harmless muscle twitching

Overview

Twitches happen when a small group of muscle fibers fires on its own. They often hit the eyelid, calf, thumb, or thigh.

Twitching alone, without weakness, is very rarely a sign of nerve disease.

Symptoms

Common signs:

• Muscle twitching
• Eyelid twitching

Less common

• Mild cramps

When to get medical care

Causes

Stress, anxiety, caffeine, nicotine, lack of sleep, hard exercise, low magnesium, and some medicines.

Does it spread or run in families?

• It isn't contagious. You can't catch it from someone else.

Who is more likely to get it

• Stress or anxiety
• High caffeine intake
• Athletes

Diagnosis

A healthcare professional asks about triggers and checks your strength.

Questions you may be asked

• Caffeine, sleep, stress, and medicines
• Any weakness, cramps, or trouble swallowing

The exam

A strength and reflex check.

Tests

Tests, if needed:

• Blood tests: Like magnesium, calcium, and thyroid.
• EMG: Rarely, a nerve test.

Treatment

Twitches usually fade when triggers ease.

Self-care

• Cut back on caffeine and energy drinks
• Get more sleep
• Manage stress: exercise, breathing, talking with someone
• Stretch and drink fluids after exercise

Prevention

To prevent twitches:

• Limit caffeine
• Sleep 7 to 9 hours

Which doctor treats this

• Start with your primary care provider (family doctor or internist).
• They may send you to a physical therapist, or a sports medicine doctor.
• A physical therapist can help with exercises to rebuild strength and motion.

Living with it

• Keep a simple diary of symptoms, triggers, and medicines to bring to visits.
• Bring a list of your medicines and questions to each visit.
• Stay active with low-impact exercise like walking, swimming, or biking.
• Use heat for stiffness and ice for flare-ups.
• Long-term illness can affect mood. Tell your doctor if you feel down or anxious.

Back to school, work, or sports

• Most people can keep working or going to school.
• Ask about changes that help, like extra breaks or a flexible schedule. Workers may be covered by the ADA. Students may get a 504 plan.

Pregnancy and breastfeeding

• If you're pregnant or planning to be, tell your prenatal provider about this condition.
• Don't start or stop any medicine on your own. Some are safe in pregnancy and some need to be changed.
• Ask before taking any pain reliever. The FDA advises avoiding ibuprofen and naproxen after 20 weeks unless your doctor says to.
• Breastfeeding: Most medicines are fine, but ask. The NIH LactMed database lists what's known about each one.

For caregivers

• Go to visits when you can and take notes.
• Keep a list of medicines, allergies, and doctors in one place.
• Learn the warning signs that need fast care.
• Take breaks and ask for help. Caregivers need care too.

Outlook

Harmless twitches can come and go for months but don't lead to disease.

Getting ready for your visit

Bring a list of your symptoms and medicines.

Questions to ask

• Could a medicine or low mineral cause this?
• Do I need any tests?

Research studies

Research studies test new ways to find and treat health problems. Some are looking for volunteers. Talk with your doctor before joining one.

Search ClinicalTrials.gov for studies on Harmless muscle twitching