Right-sided chest pain may be caused by right-sided chest muscle injury, right-sided costochondritis, pleurisy and so on. 1. Right side chest muscle injury: right side chest pain may be caused by right side chest muscle injury, if the patient is engaged in heavy physical labor or direct external blow, it may cause right side chest muscle injury, resulting in right side chest pain, accompanied by swelling. 2. Right side costochondritis: right side chest pain may be caused by right side costochondritis, costochondritis is a kind of chronic non-specific inflammation of rib cartilage. Patients may have rib pain, which may radiate to the back of the shoulder, and the pain is aggravated during excessive exercise, and in severe cases, it may involve pain in the half of the body. 3. Pleurisy: right-sided chest pain may be caused by pleurisy, the clinical symptoms of pleurisy are mainly manifested as chest pain, cough, chest tightness, high fever, and even dyspnea. There are many causes of right-sided chest pain, it is recommended that patients go to the hospital in a timely manner, under the guidance of the doctor to clarify the cause of the disease and then treatment, so as not to delay the condition of the adverse consequences.