The armpit is a complex junction where muscles, nerves, blood vessels, and lymph nodes meet. Because it is such a busy area ...

At one point or another, we’ve all experienced the unexpected, intense pain of a muscle cramp. Muscle cramps, also known as muscle spasms or charley horses, are the involuntary contraction of muscle ...

Pain in your left arm can be due to a number of causes, not just a heart attack. Other causes like a muscle sprain, pinched nerve, or angina could be at fault. Check your other symptoms to determine ...

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 ...

Jennifer M. Edwards is a journalist and author and certified personal trainer. She spent several years as the lifestyle editor for several daily newspapers in Texas, New York, and Florida. Her work ...

Medically reviewed by Amy Kwan, PT Muscle strain and poor posture are common causes of latissimus dorsi pain.  Treatment for ...

Muscle and joint pain are frequently reported symptoms of COVID-19. Back pain is the most commonly reported, but many people have pain in other areas, like the neck, shoulders, and elsewhere. COVID-19 ...

People often experience muscle pain after spinal fusion surgery due to the surgical techniques involved. However, different techniques can cause less pain, and medications can help reduce the effects ...

I have this awfully strange pain near my armpit. During my normal day, 90% of the time, it doesn't hurt. However, when I stand up and let my arm lie normally, there is an intense burning pain in a ...