How does osteoarthritis affect the knees?

Osteoarthritis affects knees by wearing down the joints from smooth surfaces to abrasive ones, explains Andrew Feldman, MD, an orthopedic surgeon at NYU Langone Medical Center.

Learn all you can about knee osteoarthritis to manage pain and improve your quality of life.

An overview of the medications for withdrawal, maintenance therapy, and emergencies related to opioid use disorder.

Learn why fibromyalgia often occurs with certain health issues and what steps you can take to ease your symptoms.

Pain, swelling, and crunching noises are among the signs something might be wrong.

Questions and answers about the association between depression and physical pain.