To explore the application value of high frequency color Doppler ultrasound in the diagnosis of linea alba hernia.

From January 2007 to December 2014, The clinical data and sonographic findings of 24 patients in Chinese PLA general hospital with linea alba hernia confirmed by surgery were retrospectively analyzed.

Preoperative high-frequency color Doppler ultrasonography revealed that the site of hernia was located in the midline of the abdominal wall between the xiphoid and the umbilicus. The diameter of the abdominal white line (hernia ring) was about 0.4 to 2.8 cm in diameter. The size was about (1.1 cm×0.3 cm×1.0 cm) to (8.0 cm×3.1 cm×7.2 cm). The shape of the hernia sac was irregular, and the echo in the sac was different because of different contents. It was mainly divided into three categories. The first type of content was extraperitoneal fat, the sonogram showed a relatively uniform or uneven hypoechoic. The second type of content was mainly the omentum, the sonogram showed a moderately low echo. The third type of content was mainly the intestine, and the sonogram was the sac. Intestinal echoes could be seen inside, and their peristalsis could be observed dynamically.

High-frequency color Doppler ultrasound can clearly show the continuity of the abdominal white line, measure the width of the defect, the size of the hernia sac, determine the contents of the hernia, and the presence or absence of incarceration, and have non-invasive, non-invasive, inexpensive. It has good reproducibility and dynamic observation. It owns good sensitivity and specificity for the diagnosis of linea alba hernia, so it is very important for the clinical diagnosis of leucorrhea.