Normal mycoplasma can be stored in the vagina for a long time and if it does not develop, there is no effect and pregnancy is possible without any symptoms of mycoplasma infection. However, when the environmental conditions of the vagina change, mycoplasma may multiply and cause disease, mainly in the form of inflammation of the cervix, purulent leucorrhea and non-streptococcal urethritis, resulting in urinary tract infections such as frequent, urgent and painful urination. If mycoplasma is found in the leucorrhea during the examination and there are symptoms, treatment is needed. After a course of treatment, if the patient has no symptoms and the examination is negative, there will be no effect on pregnancy. However, there are also cases where the patient is still infected with mycoplasma when tested after a course of medication, but the patient does not have any symptoms and can still get pregnant.