The normal value of testosterone is 1.3-2.8nmol/L. If it is higher than the standard value by 0.5nmol/L but does not have any symptoms it is not serious, if it is accompanied by infertility and other symptoms, polycystic ovary syndrome needs to be considered. Due to the different testing equipment in different laboratories and hospitals, the specific test results may also vary to some extent. If testosterone is 0.5nmol/L above the normal reference value, but there are no other uncomfortable symptoms, there is no need to worry too much, and regular observation is sufficient. However, if the testosterone is 0.5nmol/L above the normal reference value and accompanied by symptoms such as scanty menstruation, hairiness or infertility, then it is necessary to consider the cause of polycystic ovary syndrome, which requires timely medical treatment, relevant examinations, and regular treatment under the guidance of the doctor.