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

DOMS is muscle pain that occurs in the days after an intense ... be a substitute for professional medical advice, diagnosis, or treatment. Health is part of the Dotdash Meredith publishing family.

Burns differ in type and severity, as does the pain. Click here for more about the symptoms and treatments of burn-related pain. Vasculitis is a long-term (chronic) autoimmune disease, where your ...

Treatment usually isn’t necessary for most causes of muscle twitching. The spasms tend to subside without treatment within a few days. But you may need treatment if one of the more serious ...