In the treatment of Thoracic Outlet Syndrome (TOS), initial lifestyle changes and conservative methods can be effective. For example, weight loss is recommended in TOS cases associated with obesity; in situations triggered by repetitive movements, it is important to avoid these activities and overhead movements. Exercises aimed at correcting posture are beneficial for postural disorders. In addition to these approaches, physical therapy, pain relievers, and muscle relaxants can also help in managing symptoms. If symptoms persist despite conservative treatments, or if progressive muscle weakness or nerve damage develops due to nerve compression, surgical intervention may be considered. During surgery, the bands causing compression are released, and usually the first rib is removed. This operation is typically performed through an incision from the armpit (transaxillary approach) or over the collarbone (supraclavicular approach).