How long it takes for a positive diagnosis to turn negative is not generalizable, but depends on the severity of the disease and the patient’s own physical condition. New coronavirus usually refers to the new coronavirus pneumonia, when confirmed positive, if the disease is in a mild form, the patient’s own physical quality is strong and under the guidance of a professional doctor to carry out treatment, so that the condition is under control, the positive may turn to negative in 1~2 weeks, but if their own immune system is poor, the time to turn negative will increase. If the disease is in serious or critical condition, the time needed for treatment will be prolonged, and it will take longer for the positive to become negative. In addition, the patient’s poor health and the presence of other diseases can be life-threatening. Therefore, when confirmed positive for new coronavirus pneumonia, standardized treatment should be carried out under the guidance of a professional physician, so that the disease can be eliminated more quickly to avoid the after-effects. Tips] In this article, the terms “new coronavirus pneumonia and new coronavirus pneumonia” have been renamed to “new coronavirus infection” on December 26, 2022, as announced by the National Health Commission.