To explore the application value of color Doppler flow imaging and high-frequency ultrasound in the differential diagnosis of indirect, direct inguinal hernia and femoral hernia.

The data of 62 patients with inguinal hernia or femoral hernia who came to the Ultrasound Department of Third People's Hospital of Hefei from January 2019 to December 2021 were retrospectively analyzed. To summarize the imaging manifestations and contents detection results of color Doppler flow imaging and high-frequency ultrasonography, and analyze their differential diagnostic value in groin hernia.

The missed diagnosis rate and misdiagnosis rate of single detection of high-frequency ultrasound or Doppler ultrasound were higher than those of combined detection, and the accurate diagnosis rate of combined detection was higher than that of single detection of high-frequency ultrasound or Doppler ultrasound. In the distribution of hernia contents in groin hernia, the intestinal canal has the highest proportion, accounting for 37.50%, 35.29%, and 40.00%, respectively, followed by the omentum, accounting for 25.00%, 23.53%, and 20.00%, respectively; Doppler flow imaging can confirm that there is a small amount of blood flow signal in the hernia contents in patients with direct inguinal hernia; while in indirect hernia, there is no obvious blood flow in the contents of strangulated hernia and refractory hernia in patients; stellate and short-line blood flow signals can be seen in reducible hernias; a few scattered punctate blood flow signals can be seen in incarcerated hernias.

Doppler flow imaging and high-frequency ultrasound can clearly display the anatomical structure,, hernia content, lesion location, and blood flow of indirect, direct inguinal hernia and femoral hernia, which has high clinical value in differential diagnosis of indirect, direct inguinal hernia and femoral hernia.