Pregnant women infected with Gardnerella belongs to a kind of bacterial vaginosis, which is clinically treated with antibacterial drugs, such as metronidazole, and need to be used under the guidance of a doctor. Gardnerella is a kind of anaerobic bacteria that can cause inflammation of the vagina, called bacterial vaginosis. Bacterial vaginosis is a mixed infection caused by an imbalance in the normal flora of the vagina, which is characterized by an increase in thin vaginal discharge with a fishy odor. Most of the infections caused by Gardnerella are mild and are most common in sexually active women, often accompanied by vaginal burning sensation, painful intercourse and vulvar itching. However, infection with Gardnerella during pregnancy may result in the risk of miscarriage, preterm labor, premature rupture of membranes, and so on. If a pregnant woman tests positive for Gardnerella, she should seek medical advice and treatment under the direction of her doctor, taking metronidazole and vaginal medication as prescribed. During the treatment period, it is also necessary to do a good job of hygiene and care of the intimate parts, timely replacement of underwear, can be done every night with warm boiled water to wash, to reduce the breeding of pathogenic bacteria as well as infections, and inhibit the reproduction of pathogenic bacteria. During pregnancy, pay attention to more rest, and should relax, avoid tension, anxiety, any discomfort should be timely to the hospital, the doctor to clarify the diagnosis, and cooperate with the doctor symptomatic treatment.