Mycoplasma shows a weak positive, general treatment for 2 to 4 weeks can turn negative, but affect the time to turn negative is also affected by personal constitution, type of mycoplasma, drug selection and other factors. 1. Individual’s constitution: such as the patient’s body immunity, resistance, state, etc. 2. the type of mycoplasma: mycoplasma itself has a lot of different types, infection site, severity, etc. will also affect the time to turn negative 3. Drug selection: different mycoplasmas have different sensitivities to different drugs, when choosing antibiotics that are more sensitive to them, the conversion time will be relatively shorter. In most cases, early treatment and use of antibiotics can inhibit its growth, reduce symptoms and shorten the course of the disease. It is recommended to go to the hospital for early treatment if you find Mycoplasma weakly positive.