Invasive Streptococcus B is a common bacterium found in the urinary system. Invasive Streptococcus B is commonly transmitted from mother to child. The presence of invasive Streptococcus B can be observed in the urinary system of individual pregnant women in early pregnancy, and it is possible that the invasion of the human body is infected by consuming freshwater fish that has not been thoroughly processed. Invasive streptococcus B is very dangerous, once invaded, it will lead to the destruction of human organs and induce sepsis, meningitis and cellulitis, etc., and the seriousness of the disease may even lead to the death of the patient. Once infected with invasive streptococcus B, patients must go to the regular hospital to receive timely examination and treatment, to avoid delaying the condition, affecting health.