A high IgG cytomegalovirus antibody indicates a previous cytomegalovirus infection, which usually does not require specific treatment and is not a cause for concern. Cytomegalovirus infections are mostly insidious in most immunocompetent adults and children. There are usually no specific clinical symptoms, self-healing, and no need for antiviral therapy. Only in immunocompromised patients with clinical manifestations of cytomegalovirus infection, antiviral therapy is required. The current antiviral drug is ganciclovir, the course of treatment is about 2-4 weeks, can also use acyclovir and phosphonate sodium, most people can be cured after treatment.