Common causes of pain on the left side of the body include infection and injury to muscles, nerves, or internal organs, such as the heart, spleen, left lung or kidney, pancreas, and more.

Discover why headaches strike one side of your head, from migraines to nerve disorders, and learn the warning signs that ...

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 ...

A common symptom of an enlarged spleen is pain and discomfort in the upper left side of your abdomen. »Learn more about the symptoms, causes, and treatment of an enlarged spleen. The cause of ...

Alcohol use disorder or abdominal surgery can cause this condition, and the inflammation can also be a side effect of certain medications. Back pain on the left side in females can result from ...

Reds outfielder Jake Fraley has been scratched from the lineup on Monday night due to left side pain. Blake Dunn moved from left field to right field to take Fraley's place. Jacob Hurtubise slides ...