Creatine kinase 120,000 is not normal, myopathy, rhabdomyolysis, myocarditis, etc. may occur. The normal value of creatine kinase is 50-310IU/L for men and 40-200IU/L for women. Creatine kinase level up to 120,000IU/L is considered to have a higher possibility of serious muscle damage. 1. Myopathy: the patient may have muscle-related diseases, such as nutritional muscular dystrophy, which may lead to a significant increase in creatine kinase. 2. Rhabdomyolysis: some patients may have severe muscle injury, resulting in lysis of the rhabdomyolysis, and a large amount of creatine kinase is released into the bloodstream, leading to a significant increase in creatine kinase levels. 3. Myocarditis: Some patients may also suffer from fulminant myocarditis, resulting in severe elevation of creatine kinase levels. Patients with markedly elevated creatine kinase levels should go to the hospital, under the guidance of a physician, to quickly identify the cause of the disease and give targeted treatment in a timely manner.