Muscle spasms cannot be seen by MRI, and the cause of muscle spasms can be further searched by MRI. MRI is the use of a strong external magnetic field and the human body in the hydrogen nucleus, in the specific radio frequency pulse effect produced by the magnetic resonance phenomenon, by scanning the sick parts of the patient, get the image of the site, determine normal and abnormal, such as can be found with or without muscle fracture, edema, etc., but can not be clear whether there is a muscle spasm. Muscle spasms can be diagnosed by clinical symptoms, electromyography and other tests, but it is necessary to improve the relevant examinations to further clarify the causes of muscle spasms, such as facial muscle spasms, improve the cranial MRI examination to clarify whether there is facial nerve compression. If you are diagnosed with muscle spasm, you should go to the hospital in time to find out the cause of the disease and treat the symptoms.