What is the cause of the vague pain in the ribs under the left breast?

There are many reasons for the hidden pain in the rib cage below the left breast, and the common reasons are chronic intercostal muscle strain, local soft tissue injury, costochondritis, coronary heart disease and so on.
1. Chronic intercostal muscle strain: due to prolonged poor sitting posture, such as waist twisting or sitting for a long time with legs crossed, it will make bilateral intercostal muscle uneven force, which may lead to the left side or bilateral intercostal muscle strain, pain and swelling and other symptoms.
2. Local soft tissue damage: the rib cage below the breast is exactly where women will be pressed when wearing underwear, if the underwear is inappropriate or wear too tight, the long-term compression leads to local soft tissue damage, then the phenomenon of pain.
3. Costal chondritis: Unexplained costal chondritis, there will be pain in the ribs, when costal chondritis occurs in the ribs below the left breast, there will be a vague pain in the ribs below the left breast.
4. Coronary heart disease: angina pectoris and myocardial infarction, the pain site is usually located in the left side of the lower ribs, if there is angina pectoris or myocardial infarction, there may be a feeling of pain in the lower ribs of the left breast.
There are other reasons for the pain in the ribs below the left breast, it is recommended to go to the hospital in time to find out the cause of the disease and treat the cause.