Underarm Muscle Cramps: Causes and When to Seek Help

Axillary cramping

Hello Doctor: In the past six months, I have experienced cramps in my armpits, occurring about 1-2 times a month, lasting around 10-15 seconds each time.
However, there are days when it happens 2-3 times.
There is no pain, just the cramps.
I would like to know what this might be and which specialist I should see.

Jiang Xiangyu, 20~29 year old female. Ask Date: 2022/12/14

Dr. Peng Shiwei reply Neurology

Hello, based on your description, there is no specific condition that fits your symptoms.
However, if you find these symptoms troubling, you can visit a neurology clinic for a detailed consultation to see if there are any solutions available.

Reply Date: 2022/12/14

More Info

Underarm muscle cramps, while often benign, can be concerning for those experiencing them. The fact that you have been experiencing these cramps for the past six months, occurring 1-2 times a month, and sometimes more frequently, warrants a closer look.
Muscle cramps in the underarm area, or axillary region, can be caused by several factors. One common reason is muscle fatigue or overuse. If you have recently increased your physical activity, particularly activities that involve the upper body, this could lead to muscle cramps. Dehydration is another potential cause; when the body lacks sufficient fluids, it can lead to muscle cramps. Electrolyte imbalances, particularly low levels of potassium, calcium, or magnesium, can also contribute to muscle cramping.
In some cases, nerve compression or irritation can lead to muscle cramps. For instance, if there is pressure on the nerves that innervate the muscles in the underarm area, it could result in cramping sensations. Conditions such as thoracic outlet syndrome, where blood vessels or nerves are compressed in the space between your collarbone and your first rib, may also lead to symptoms in the underarm region.

Given that your cramps are not accompanied by pain, this is a positive sign, as painful cramps can indicate more serious underlying issues. However, the frequency and duration of your cramps (10-15 seconds) suggest that it may be worth investigating further.
When to seek help? If the cramps become more frequent, last longer, or are accompanied by other symptoms such as weakness, numbness, or pain, it is advisable to consult a healthcare professional. A primary care physician or a neurologist would be appropriate specialists to evaluate your symptoms. They may conduct a physical examination, review your medical history, and possibly order tests such as blood tests to check for electrolyte levels or imaging studies to assess for nerve compression.

In the meantime, consider some self-care measures. Ensure you are well-hydrated, especially if you are active. Incorporating foods rich in potassium (like bananas), calcium (like dairy products), and magnesium (like nuts and seeds) into your diet can help maintain electrolyte balance. Stretching and strengthening exercises for the upper body may also alleviate some of the muscle tension that could be contributing to the cramps.

In summary, while occasional muscle cramps can be normal, persistent or frequent cramps should be evaluated by a healthcare professional to rule out any underlying conditions. Keeping track of your symptoms, including when they occur and any associated activities, can provide valuable information for your healthcare provider.

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