What Is Thoracic Outlet Syndrome?
5. Causes
There are various reasons why the nerves or blood vessels can become compressed in this way. One is that the patient has suffered an injury to the thoracic outlet. Another is a persistent poor posture which has affected the structure of the outlet. Obesity is another potential cause, as is carrying heavy weights like backpacks.
Some cases are caused by repetitive movements of the shoulders, meaning some sports people are prone to developing the condition. In other cases, the underlying cause of the condition can be a defect anatomically. Also, a woman’s joints will become looser when pregnant, which is another potential cause.
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