GBS refers to group B streptococcus, also known as non-lactating streptococcus, which normally resides in the vagina and rectum and belongs to the conditional pathogenic bacteria, which may be positive during the maternity test of pregnant women, and it can cause miscarriage, premature birth, premature rupture of membranes, intrauterine infection, and puerperal infection and other pathogenic bacteria, and can also cause neonatal sepsis, pneumonia, meningitis and so on. Therefore, if you are positive, you need to pay attention to it, consult a doctor promptly, and treat it according to the doctor’s instruction, and usually start using antimicrobial agents before delivery.