what are spasms in tetany disorder

Spasm is the symptom of the disease called tetanus that affects the body's muscles and nerves. It typically arises from a skin wound that becomes contaminated by a bacterium called Clostridium tetani. Spasms are defined as sudden involuntary contractions in a muscle, which in the case of Tetanus are prolonged and painful.  The muscle tends to become hyperexcitable because of overuse and goes into a forced contraction that lasts for some time and can be discomforting.