There are many reasons for intermittent pain in the right breast, such as breast hyperplasia, neurosis, pleurisy, costochondritis and so on. 1. Breast hyperplasia: cystic hyperplasia of the right breast can cause intermittent pain in the right chest, especially before menstruation, the pain is more obvious, and can be gradually relieved after menstruation. 2. Neurosis: autonomic dysfunction can cause neurosis, which will show intermittent pain in the right chest, mainly dull pain, stabbing pain, especially after overwork and cold, the symptoms will be aggravated. 3. Pleurisy: If the patient has a history of lung infection, then the intermittent pain in the right chest may be due to pleurisy, especially when the symptoms are aggravated by severe coughing and deep breathing. 4. Costochondritis: intermittent pain in the right chest cannot be excluded due to costochondritis, which is common in young women and belongs to aseptic inflammation, and can be accompanied by respiratory restriction in severe cases. There are many reasons for intermittent pain in the right chest, and you should go to the hospital after the symptoms appear, give standardized treatment after a clear diagnosis, and don’t ignore the symptoms, so as not to delay the treatment of the condition.