The common lung infection can range from mild to life-threatening. Here’s how to recognize it and when to seek care.

Pain under your left rib cage may be caused by something simple like something you ate, but it can also signal serious conditions like a heart attack or a ruptured spleen. Recognizing when to seek ...

Most colds clear up on their own, but some get worse. Here are the warning signs your cold is getting worse—and when to ...

Chest pain can indicate an injury to your ribcage, surrounding muscles, or connective tissue. Pulled muscles, fractured ribs, and arthritis are all potential causes. Your musculoskeletal system ...