A myospasm is an uncontrolled and involuntary contraction of a muscle or group of muscles. Myospasms are categorized into clonic myospasms and tonic myospasms. Clonic myospasm is a condition that causes a muscle or group of muscles to contract actively, rapidly, and repeatedly over a period of time. Such contractions, which are usually rhythmic, cannot be controlled by the patient’s consciousness. Tonic myospasm usually has no regular contractions and lasts for a longer period of time. Many kinds of causes can lead to muscle spasm, such as fatigue, electrolyte imbalance, cold stimulation, neurological disorders or brain tissue diseases, etc. You can go to the hospital to get a clear picture of the cause of the disease and manage it correctly.