Excessive medical treatment refers to medical institutions or medical personnel violate the norms of clinical medicine and ethical guidelines, and cannot really improve the value of diagnosis and treatment for patients, but only increase the consumption of medical resources in vain. In other words, inappropriate, unregulated or even unethical medical practices, such as examinations and treatments, are carried out in the course of treatment that are detached from the actual condition of the patient. Simply put, overmedication is the act of diagnosis and treatment that exceeds the actual needs of the disease. Excessive medical treatment is not necessary for the diagnosis and treatment of the condition, or at least not completely necessary for the diagnosis and treatment of the condition. Excessive medical care is contrary to ethics and is prohibited by law and the related system. Excessive medical treatment includes: 1. excessive examination 2. Excessive treatment (including medication, surgery and interventional treatment). 3.Excessive care. Although the definition of excessive medical care is clear, it is very difficult to define in reality. Because, clinical medicine is very complex, each patient’s situation is different, even the same disease has different manifestations, and different treatment methods for different periods of the same disease. Take the cold, do CT that is excessive medical treatment, but if you do routine blood tests that is not necessarily, many diseases are similar, doctors need data to confirm the diagnosis, sometimes doctors take a comprehensive examination means, which tests are necessary for a correct diagnosis, which is redundant, are determined by the doctor according to their own experience and level, therefore, the judgment of excessive medical treatment is not a specific quantitative indicator. In addition, the perception of overmedication varies in different economic and cultural contexts. In general, the basic criteria for determining overmedication are: whether the treatment of the patient is generally beneficial or harmful. In treatment, it depends on what the physician’s purpose is, whether the treatment has a preventive effect, whether it reduces the patient’s suffering, and whether it prolongs the patient’s life. Overdose will produce three results: 1, frequent infusion of water will directly damage the dorsal veins of the hand, after the destruction of the dorsal veins of the hand, when the patient must be infused with water when the nurse lancing difficulties, affecting the rescue. 2, produce resistance to drugs, usually too many drugs, to the general drug does not work when a major disease. Make it difficult for doctors to choose drugs. 3, is the drug have toxic side effects. Sometimes new diseases can arise. Moderate medical principles: 1, can food therapy not drugs; 2, can oral medicine treatment, never water; 3, can internal medicine treatment, never surgery; 4, can outpatient treatment, never hospitalization.