The three common malignant tumors in gynecology are cervical cancer, endometrial cancer and ovarian cancer. For the treatment of these tumors, there are common treatment norms at home and abroad, which are the treatment guidelines of the American Cancer Network (NCCN guidelines); these guidelines are all based on evidence-based medicine, that is, they are established on the basis of a large number of clinical practices, and they are updated every year. A cancer patient is suffering, and the family will not spare any cost for the life of their loved ones; therefore, in the eyes of some doctors and hospitals, it is a good opportunity to make profits and earn a share of money against their conscience as a matter of course. This is the root cause of the serious over-treatment in the treatment of gynecological malignancies at present. Hospitals are trying to generate revenue, doctors are trying to make profit, and manufacturers are trying to promote the products, which constitute a chain of interests that is harmful to money and life. The experts of certain domestic famous hospitals are doing the leading of this interest chain. The most typical operation method is to obtain contact with the local hospital through the way of the following doctors going to that hospital for further training, and then go to the local hospital. Early stage cervical cancer, endometrial cancer and ovarian cancer only require surgery, not radiotherapy. If the tumor has been removed cleanly, no further treatment is needed. Therefore these adjuvant treatments are indicated and should not be abused. The current chemotherapy without indications is very serious. The aim of treatment for middle and late stage tumors is to prolong life with quality of life. If there is a possibility of cure, chemotherapy should be administered with adequate courses and doses regardless of the serious side effects. If there is no longer a possibility of cure, life should be prolonged under the premise of ensuring the quality of life. Therefore, the patient should try to find a doctor with good medical ethics and excellent skills to treat the patient. It is best to check the doctor’s qualifications on the Internet. Especially what his past patients have to say about him. Today there are many so-called experts who have false names. They can obtain various titles by various methods with the aim of cheating patients. Overtreatment is extremely detrimental to patients and families. First of all, unnecessary treatment may lead to various complications, even lethal ones. Such as various organ damage caused by surgery.