There are 24 ribs in total, 12 on each side of the body. The following are emergency causes of pain under the left rib cage: ...

Most rib fractures are treated with rest ... Symptoms often feel like a heart attack—including pain that radiates under the left side of your breast, Dr. Cutler says. Like a heart attack ...

Some other lung-related conditions known to cause chest discomfort include: Pneumonia: This infection inflames the air sacs ...

In fact, chest pain on the left side under the breast is more common because ... Costochondritis is caused by inflammation between the ribs and sternum, Dr. Kharazi says. It often worsens with ...

But when you have pain under your ... cartilage that connects a rib to the breastbone, the Mayo Clinic explains. It usually impacts the upper ribs on the left-hand side of your body and can ...