Hidden pain in the middle depression of the two breasts may be caused by cardiovascular diseases, respiratory diseases and digestive diseases. 1. Cardiovascular disease: if there is angina, heart valve disease and other cardiovascular diseases, there may be a woman in the middle of the two chest depression hidden pain. 2. Digestive system diseases: mostly seen in reflux esophagitis, esophageal ulcer and esophageal cancer and other diseases. It may cause hidden pain in the middle depression of both breasts. 3. Costochondritis: it is often related to strain or trauma, with bow-shaped bulge at the junction of rib and cartilage, and widening of rib cartilage, which may cause persistent hidden pain. In addition, chest diseases can also lead to hidden pain in the middle depression of the two breasts. To summarize, there are many causes of hidden pain in the middle of the two chest depressions in women, and it is recommended that patients go to the hospital in a timely manner to clarify the cause of the disease and to treat it.