He4 is known as human epitope protein 4, which is a tumor marker, in normal physiological conditions h14, there is a very low level of expression in the human body, but in the disease state of ovarian cancer, the serum can be highly expressed, so it can be used to diagnose whether you are suffering from ovarian cancer disease. Its value, depending on the method of examination, shows different results, because this value is also related to age, the older the level will be higher, healthy women, the normal value is generally below 140, more than this value is considered abnormal.