Doppler ultrasound can diagnose diseases and aid in diagnosis. Doppler ultrasound is generally applied to the relevant technology for Doppler signal processing, and then the blood flow signal obtained by the relevant technology is color coded and superimposed on the two-dimensional image in real time, thus forming both color Doppler ultrasound blood flow images. Color Doppler provides a rich signal of the hemodynamics of various organs and tissues as well as lesions for the purpose of diagnosing diseases and aiding diagnosis. This type of Doppler is what is considered to be color Doppler by the majority of everyday clinical patients, as it can provide a relatively rich blood flow signal, especially when the patient has an occupying lesion, and can provide diagnostic information regarding the benign and malignant diagnosis of certain diseases.