Although spasticity is a condition involving unusual tightness of muscles in the body, the cause typically originates from an injury to or disorder of the central nervous system (CNS). Image Credit: ...

Medically reviewed by Matthew Wosnitzer, MDKey TakeawaysBladder spasms happen when the bladder muscle squeezes without ...

We've all been there before. Running along the basketball court or swimming across the pool, when, all of a sudden, we experience a sharp pain in our foot or leg. Muscle cramps are common, affect ...

We've all been there before. Running along the basketball court or swimming across the pool, when, all of a sudden, we experience a sharp pain in our foot or leg. Muscle cramps are common, affect ...

Spasticity is a condition that affects your muscles, making them tight or stiff. This can impact your ability to perform daily activities, such as walking, eating, and talking. The condition may also ...

Spasticity is a clinical sign characterized by muscle over-activity and high tone spasms that is associated with several distinct neurological diseases. Timely diagnosis and management are essential ...

Medically reviewed by Eva Umoh Asomugha, M.D. Many people with low back pain or sciatica describe the pain as a tight muscle or back spasm. Back spasms may feel mild—like a small fist is pressing into ...

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 ...

Spastic diplegia cerebral palsy (SDCP) is a form of cerebral palsy that causes muscle stiffness and spasms in a person’s legs and, sometimes, arms. This is due to damage to the motor cortex of the ...