Unexplained muscle pain in the arms and legs may be the result of benign issues. Or it may point to a more serious underlying condition, such as fibromyalgia, infection, or thyroid issues. Muscle pain ...

Some people experience muscle pain in cold weather. This may be due to the effects of cold temperatures. For example, being cold can make muscles tense. Cold weather may increase the risk of muscle ...

For years, doctors have heard the same complaint from patients on statins: their muscles hurt. Some describe general achiness, others struggle with weakness, and in rare cases, people end up in the ...