Anterior chest pain against the clavicle may be an adverse symptom caused by pneumothorax, pleurisy, costochondritis will also appear such discomfort, it is recommended to go to the hospital for a comprehensive examination. 1. Pneumothorax: Pneumothorax may cause anterior thoracic cavity against the clavicle pain, suffering from this disease, the patient will usually appear chest tightness, shortness of breath, dyspnea and other adverse symptoms, may also cause strong irritating cough, around the chest will be obvious feeling of stuffiness, severe respiratory failure may result. 2. Pleurisy: pleurisy may also lead to anterior thoracic cavity against the clavicle pain, pain will travel to the chest around, the patient will also appear chest tightness, cough and other adverse symptoms, some patients will have fever, will cause body aches and weakness and other discomforts. 3. costochondritis: the front chest cavity by the clavicle pain, may also be the discomfort caused by costochondritis, with this kind of disease usually will be manifested as chest pain, burning sensation and other undesirable symptoms, the affected area may appear different degrees of swelling, the body is overworked when the disease will be more intense, violent coughing or deep breathing will aggravate the pain. If you are experiencing this kind of discomfort, you need to seek medical attention in a timely manner, under the guidance of a doctor to conduct a comprehensive examination, and actively cooperate with the doctor to carry out treatment after diagnosing the cause of the disease.