What is the medical term meaning sustained muscle spasms?

The medical term for sustained muscle spasms is tetanus. Tetanus is a serious medical condition that can lead to severe muscle contractions, stiffness, and pain. It is caused by a toxin produced by the bacterium Clostridium tetani, which enters the body through a wound or injury. Symptoms of tetanus can include: locked jaw, stiff neck, difficulty swallowing, and painful muscle spasms. Treatment for tetanus typically involves antitoxin therapy, antibiotics, and supportive care.