What might cause chest pain on the right side above the breast?

There are several reasons you might feel pain above your right breast. One possible cause is costochondritis, an inflammation where your ribs join the breastbone, which can lead to sharp chest pain that worsens with movement or deep breathing. Pleurisy, which is inflammation of the thin tissue lining your lungs, can also cause pain that is worsened by breathing. Other, more serious conditions, such a blood clot in the lungs can also cause right sided chest pain. Additionally, in some cases, acute mastitis—infection or inflammation of the breast tissue—can produce localized chest pain, particularly in women who are breastfeeding. It is important to pay attention to any other symptoms you may have, such as fever, increased pain when taking a deep breath, or worsening symptoms over time. If you experience these signs, you should speak with a healthcare provider so they can evaluate your condition and recommend the proper treatment. To help identify what might be causing your symptoms, you can use Ubie's free AI symptom checker to get personalized insights based on your specific symptoms.