Positive rubella virus generally refers to positive rubella virus antibody, which is clinically categorized into IgM antibody and IgG antibody, with different meanings. 1. IgM antibody: Positive antibody suggests that the patient is in the stage of acute infection, and it appears positive about one week after infection with rubella virus, and usually turns negative within half a year, so positive antibody suggests that the patient may be in the stage of infection, and the diagnosis is made by combining with the patient’s clinical symptoms. 2. lgG antibody: Positive antibody indicates that the patient has been infected with rubella virus, but has recovered from the infection, and the antibody is also positive in people who have been vaccinated against rubella virus in the past. Positive antibodies indicate a previous infection, but some patients may remain positive for life. Clinical attention should be paid to pregnant women in particular, as the presence of rubella virus infection may affect the fetus or even cause congenital malformations, and it is recommended to consult the Obstetrics and Gynecology Department of a regular hospital.