Rubella occurs after infection with the rubella virus, which is a contagious disease. The typical clinical symptoms are fever, rash, and swelling of the lymph nodes behind the ears and at the back of the head. Generally, the clinical symptoms are relatively mild, the course of the disease is relatively short, and the prognosis is mostly good. However, if a pregnant woman is infected in the early stages of pregnancy, it can potentially affect the growth and development of the fetus. Transmission can occur through ordinary droplets, respiratory transmission, or close contact between individuals. In terms of treatment, there are no specific drugs, and many patients can recover in about two weeks without treatment.