Lockjaw happens when your jaw muscles tighten up so much that you can't open your mouth properly. Tetanus is a serious bacterial infection that can cause lockjaw and muscle spasms. TMJ disorders can ...

A stiff neck and sore throat often occur due to viral or bacterial infections. Home remedies can manage most cases of sore throat and stiff neck. It's important to seek medical care if symptoms result ...

Stiff person syndrome (also known as SPS, Moersch-Woltman syndrome, and stiff man syndrome) is a very rare condition that can cause your muscles to become rigid or spasm. This is a progressive ...

Q: A few months back I started to have a tightness in my neck, mostly on the right. I tried to ignore it, but then my head began to bend toward my right shoulder. Sometimes I cannot straighten it. As ...

Neck pain on the left side usually results from a benign cause, like muscle strain from sleeping in an awkward position. Sometimes, a more serious cause may be a tumor or rheumatoid arthritis. The ...

‌Hemifacial spasm is a disorder of the nerves and muscles that causes nonpainful involuntary twitching on one side of the face. Many people refer to hemifacial spasms as lip muscle spasms. Hemifacial ...

This article was reviewed by Craig Primack, MD, FACP, FAAP, FOMA. A muscle strain, or a pulled muscle, is among the most common injuries affecting people of all ages, particularly those engaging in ...

• Neck pain is a common symptom for individuals with MS due to the central nervous system’s role in transmitting signals through the spinal cord. • Specific types of neck pain, like Lhermitte’s sign ...

Background A 28-year-old woman presented to hospital after an episode of severe lower back spasms that occurred during a stressful family gathering. She had a history of progressive difficulty bending ...