Right side chest pain on inhalation can be caused by pleurisy, costochondritis, tuberculosis, pneumothorax, etc. The cause should be clarified and actively treated. 1. Pleurisy: when the right pleura is infected with inflammation, the right side of the chest may have pain when inhaling or coughing. 2. Costochondritis: when the right side costochondritis patient breathes deeply or coughs, the right side chest pain may appear, and the pain can be alleviated when the movement stops or when breathing calmly. 3. Tuberculosis: chest pain may appear when tuberculosis involves the pleura, and the pain is aggravated when inhaling and coughing, which is often accompanied by coughing, coughing up sputum, hemoptysis, low-grade fever and weight loss. 4. Pneumothorax: When pneumothorax occurs on the right side, there will be the symptom of pain in the right chest when inhaling, accompanied by dyspnea. There are many other reasons for right chest pain on inhalation, it is recommended to go to the hospital specialist for further examination in time, to clarify the cause of the disease and treatment, so as to avoid delaying the condition.