Herpes simplex virus antibody igm greater than 3.5 indicates that the patient has a positive test result, and a positive IgM suggests a recent herpes simplex virus infection. Herpes simplex virus antibody igM titer value is greater than 1:16 is positive, but different machines and equipment in the test there will be some differences, the patient can pay attention to the qualitative examination, in the clinic IgM can usually be used as an indicator of infection, herpes simplex virus antibody igM antibody is positive, on behalf of the patient recently infected with herpes simplex virus. There are two types of herpes simplex virus: type I and type II. Neutralizing antibodies can appear in the serum about one week after primary infection and reach a peak in three to four weeks. In case of abnormal test results, it is recommended to seek prompt medical attention to clarify the cause of the disease with the help of a doctor and to carry out targeted management or treatment.