Hypomagnesemia is not serious in the early stages, but tends to be more serious if the condition continues to worsen. Hypomagnesemia is mainly caused by the low concentration of magnesium in the serum, because magnesium has an important role in the activity of human enzymes and energy metabolism, etc. When the concentration of magnesium in the serum is too low, it may lead to hypomagnesemia, the early stage usually manifests as nausea, vomiting, anorexia and other uncomfortable symptoms, the condition is not very serious. However, if the organism lacks magnesium without timely and effective treatment measures, with the magnesium deficiency aggravation, the patient will appear nystagmus, muscle tremor, hand and foot twitching and other symptoms, and may even lead to neurological disorders, coma, more serious. Hypomagnesemia should consult the doctor in time, cooperate with the doctor to take magnesium supplementation treatment, in addition, need to clarify the causes of magnesium deficiency, for the cause to take treatment.