thoracic outlet syndrome (TOS)

Thoracic outlet syndrome (TOS) is a condition where nerves or blood vessels between the collarbone and the first rib become compressed. This can cause symptoms like pain, numbness, tingling, or weakness in the neck, shoulder, arm, or hand. TOS often results from anatomical abnormalities, trauma, poor posture, or repetitive motions. The severity and type of symptoms depend on whether nerves, blood vessels, or both are affected. Treatment options range from physical therapy and pain management to surgery in severe cases, aiming to relieve pressure and restore normal function.