The value of malignant tumor specific growth factor is 79U/ml only once, which is generally not serious, but if the index is increased for several times and shows an elevated trend, then it may suffer from more serious cancer diseases and should be taken seriously. Malignant tumor specific growth factor is a kind of tumor indicator that is widely used in clinic, and abnormal elevation of the indicator can be detected in lung cancer, stomach cancer, breast cancer and other cancers, and this indicator can be detected in early cancer patients, so it can be used as an auxiliary indicator for early cancer screening. However, the diagnostic specificity of malignant tumor-specific growth factor is not high. In some inflammatory diseases or connective tissue diseases, this index can also be detected to be elevated, but the elevation caused by benign diseases is mostly transient, and the index will mostly return to normal after the disease improves.