Asymmetrical Clavicles: Causes and When to Seek Help - Orthopedics

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The right clavicle is noticeably larger?


Hello, Doctor: I would like to ask you about my right clavicle, which is noticeably larger and more prominent.
This has been the case for some time.
Initially, the size difference between both sides was not very obvious, but recently it seems that the bone has been getting larger.
Both visually and upon palpation, there is a clear difference between the left and right clavicles.
There has been no injury to the clavicle, and my daily activities are normal.
There is no pain when I palpate the clavicle, but it does hurt a bit when I tap it.
I am right-handed; could this be related to the muscle and skeletal development of my dominant hand? Could it be a lymphatic issue? I would like to know which specialty I should consult and how I should proceed.
Thank you!

Kele, 40~49 year old female. Ask Date: 2018/08/21

Dr. Shi Guozheng reply Orthopedics


It may be necessary to take an X-ray to determine if there is a real difference between the two sides.
In some individuals, the muscles and bones on the dominant hand side may be more robust, which is normal.
If there is a tumor, it is usually visible on an X-ray.
It is advisable to consult a physician for further evaluation.

Reply Date: 2018/08/21

More Info


Asymmetrical clavicles can be a source of concern for many individuals, especially when noticeable changes occur over time. In your case, you’ve observed that your right clavicle appears larger and more prominent than the left, and this has become increasingly noticeable. While it’s good to hear that you haven’t experienced any pain unless pressure is applied, it’s still important to understand the potential causes and when to seek medical help.

Firstly, asymmetry in the clavicles can occur for several reasons. One common cause is muscular development. As you mentioned, being right-handed means that the muscles on your right side may be more developed due to regular use. This can lead to a more pronounced appearance of the right clavicle. Over time, repetitive use of one side of the body can lead to hypertrophy (enlargement) of the muscles and bones on that side, which might explain the changes you’re observing.

Another potential cause could be a previous unnoticed injury or strain that may have led to a change in the bone structure or muscle attachment. Even if you don’t recall a specific injury, minor trauma can sometimes go unnoticed but still affect the bone over time.
In some cases, conditions such as scoliosis or other postural issues can lead to asymmetry in the clavicles. If your posture has changed or if you have developed any compensatory patterns in your movements, this could also contribute to the differences you’re noticing.

Regarding your concern about lymphatic issues, while lymphadenopathy (swelling of lymph nodes) can cause asymmetry, it typically presents with other symptoms such as pain, swelling, or systemic signs like fever. Since you mentioned that there is no pain unless pressure is applied, it seems less likely that this is a lymphatic issue, but it’s still worth considering if you notice any other symptoms.

When it comes to seeking medical help, it would be advisable to consult with an orthopedic specialist. An orthopedic doctor specializes in the musculoskeletal system and can provide a thorough evaluation of your clavicle and surrounding structures. They may perform a physical examination and, if necessary, order imaging studies such as X-rays or MRI to assess the bone structure and any underlying issues.

In the meantime, it’s essential to monitor any changes in your symptoms. If you start experiencing pain, swelling, or any other unusual symptoms, it would be prudent to seek medical attention sooner. Additionally, if you have concerns about your posture or muscle imbalances, a physical therapist could provide exercises and strategies to help address those issues.

In summary, while asymmetrical clavicles can often be benign and related to muscular development, it’s essential to remain vigilant and consult with a healthcare professional if you have concerns. An orthopedic evaluation will help determine the cause of the asymmetry and guide you on the appropriate course of action. Remember, early intervention can often lead to better outcomes, so don’t hesitate to seek help if you feel it’s necessary.

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