The pathogenesis underlying the development of<unk>  remains unclear. Proposed mechanisms of pain include neurogenic inflammation, muscular imbalances, neuropathy of the intercostal nerves, myofascial pain, or mechanical dysfunction.
Costochondritis
Pneumothorax
Osteochondritis
Pulmonary embolism
Athletic pubalgia
Fibromyalgia
Epicondylitis
Angina