Mycoplasma is an opportunistic pathogenic microorganism, and when the body is resistant, even if it is infected, it usually has no symptoms. Sometimes the body is in a carrier state and is prone to develop symptoms of genital tract infection or urinary tract infection when the body’s resistance is weakened. Genital tract infections are usually increased discharge, purulent discharge, and pain in the genital tract, and urinary tract infections are often urinary frequency, urgency, and painful urination, symptoms similar to bacterial infections. Many antibiotics are available to treat mycoplasma infection during pregnancy if it is more than three months old, such as cephalosporin and azithromycin, which can be used even by pregnant women. Because mycoplasma also has the potential to affect fetal development, it should still be treated aggressively. In addition, spouses should also be tested and treated at the same time, because mycoplasma is still mostly transmitted through sexual contact.