Side Chest Pain During Exhalation: Causes and Concerns - Pulmonology

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Pain on the outer side of the chest when exhaling?


Hello, doctor.
I do not smoke or drink, and I have been experiencing this condition for a week.
The pain is located on the outer side of my left chest, specifically on the side of my body.
I feel a very mild pain when I exhale, usually from the afternoon to the evening, but it does not hurt all day.
I am mainly worried that it could be cancer (I have not had a cough except for one cold last year).
A few days ago, I went to the Tuberculosis Prevention Association in Taipei for an X-ray, and the doctor said there was no issue, suggesting it might be intercostal neuralgia caused by poor posture.
However, I find it strange that I do not feel any pain when I sneeze, intentionally cough, or even when I played basketball these past couple of days.
I cannot find any tender points on my body; the pain only occurs when I exhale.
Is this normal? I am really afraid it might be a tumor...
Thank you for your help, doctor.

Mr. Zhang, 20~29 year old female. Ask Date: 2019/03/30

Dr. Yang Wenda reply Pulmonology


Hello: The chest X-ray is normal, which likely rules out most pulmonary diseases.
There is no pain during exercise, and it does not seem to be musculoskeletal pain.
Neuropathic pain is possible, but it is usually not severe.
It is recommended to relax and not to deliberately test whether exhaling causes pain, as you have been taking deep breaths and exhaling for several minutes during exercise without feeling any pain.
It is advised to maintain a calm mindset!

Reply Date: 2019/03/30

More Info


Understanding side chest pain during exhalation can be concerning, especially when it persists for an extended period. Based on your description, it seems that you are experiencing mild pain on the left side of your chest, specifically during exhalation, and this has been ongoing for about a week. You have already consulted a physician who performed an X-ray and ruled out serious conditions such as lung cancer, which is a significant relief.

The pain you are describing could be attributed to several potential causes, and it is essential to consider these in the context of your overall health and lifestyle. One possibility is intercostal neuralgia, which is pain that arises from the nerves that run between the ribs. This condition can occur due to poor posture, muscle strain, or even repetitive movements, which may irritate the intercostal nerves. Since you mentioned that the pain occurs primarily when you exhale, it could be related to the movement of the rib cage and the associated muscles during breathing.

Another potential cause could be musculoskeletal issues, such as muscle strain or inflammation of the muscles in the chest wall. If you have been engaging in physical activities like basketball, it is possible that you may have strained a muscle without realizing it. This type of pain can often be exacerbated by specific movements or positions, which might explain why you do not feel pain during activities like coughing or sneezing.

Anxiety and stress can also manifest as physical symptoms, including chest pain. Given that you have expressed concern about the possibility of cancer, it is understandable that anxiety could contribute to your perception of pain. Stress can lead to muscle tension, which might exacerbate any underlying musculoskeletal issues.

It is reassuring that you have not experienced any other alarming symptoms, such as persistent cough, significant shortness of breath, or systemic symptoms like fever or weight loss, which would warrant further investigation for more serious conditions. The absence of tenderness upon palpation is also a good sign, as it suggests that the pain may not be due to a more severe underlying issue.

If the pain continues or worsens, it would be prudent to follow up with your healthcare provider. They may recommend further evaluation, such as an MRI, to assess for any soft tissue issues or other underlying conditions that may not have been visible on the X-ray. Additionally, they might suggest physical therapy to address any postural or muscular issues contributing to your pain.

In conclusion, while your symptoms are concerning, they are not uncommon and can often be attributed to benign causes such as intercostal neuralgia or musculoskeletal strain. It is essential to monitor your symptoms and maintain open communication with your healthcare provider to ensure that any changes are addressed promptly. Remember to practice good posture, engage in gentle stretching, and manage stress, as these can all contribute to alleviating your discomfort.

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