Skull Protrusions: When to Seek Medical Advice - Orthopedics

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When it comes to understanding skull protrusions, particularly in your case where you have had a hard, round protrusion behind your left ear for several decades, it is essential to approach this with a comprehensive understanding of the potential causes and implications.
Firstly, it is not uncommon for individuals to have benign bony protrusions on their skulls. These can be due to a variety of reasons, including genetic factors, previous trauma, or even normal anatomical variations. In many cases, these protrusions are harmless and do not require any treatment. However, the fact that you have noticed a change in size or have started to feel discomfort is a valid reason to seek medical advice.

The protrusion you describe, which is approximately the size of a one-yuan coin and about 0.7 cm high, could be a benign bone growth, such as an exostosis or a bony prominence that has developed over time. However, it is also important to consider other possibilities, including the risk of a more serious condition, such as a bone tumor or other growths. While the likelihood of a tumor is relatively low, especially given your long history with this protrusion, it is still a possibility that should not be dismissed.

In terms of symptoms, you mentioned experiencing occasional neuralgia or "nerve pain," which could be related to the protrusion if it is pressing on nearby nerves. This is another reason to consult a medical professional.
When deciding which specialist to consult, both an orthopedic surgeon and a neurologist could be appropriate. An orthopedic surgeon specializes in the musculoskeletal system, which includes bones, joints, and associated structures. They would be able to assess the bony protrusion and determine if it is causing any structural issues or if it requires surgical intervention. On the other hand, a neurologist specializes in the nervous system and could evaluate any neurological symptoms you may be experiencing, such as the nerve pain you mentioned.

It may also be beneficial to start with your primary care physician, who can perform an initial evaluation and refer you to the appropriate specialist based on their findings. They may recommend imaging studies, such as X-rays or a CT scan, to get a clearer picture of the protrusion and its relationship to the surrounding structures.

In summary, while many skull protrusions are benign and do not pose a significant health risk, changes in size or the onset of new symptoms warrant a medical evaluation. Consulting with a healthcare professional will help determine the nature of the protrusion and whether any further action is necessary. It is always better to err on the side of caution when it comes to changes in your body, especially those that have persisted for many years.