Muscle injuries, nerve pain, and kidney inflammation can all cause lower left back pain. Learn about these causes and more.

Various conditions can cause pain in the abdomen and back. These include menstrual pain, endometriosis, kidney stones, and pancreatitis. More serious causes include a kidney infection or appendicitis.

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." It may surprise you to know that what’s bringing about your localized abdominal pain could be dependent ...

Ouch! You may know that pain in your lower right abdomen is infamously linked to appendicitis, but what about pain in your lower left abdomen? While it could simply be a muscle strain, it’s important ...

This image of poor Jason Day was taken at the 2016 World Golf Championships. Long time ago, but when you think about Day's career, that's how long—if not longer—he has been dealing with back issues.

Orthopedic surgeons and a sleep medicine specialist share the best ways to reduce your nighttime pain so you can get a solid ...

That nagging shoulder ache that always appears on your right side. The knee that gives you trouble only on the left. The hip pain that never seems to affect both sides equally. If you’ve noticed that ...