Girls usually get hernias even though the incidence of hernias is much lower than that of boys. This is usually due to abdominal trauma, underdevelopment, or increased intra-abdominal pressure due to chronic constipation, crying, or ascites, which causes organs or tissues in the body to pass through a congenital or acquired weakness, defect, or aperture into another part of the body, generally known as an inguinal hernia or hiatus hernia. In girls, the abdominal wall may be weakened due to underdevelopment, abdominal trauma, or increased intra-abdominal pressure due to frequent crying, chronic coughing, etc. The round ligament of the uterus passes through the transversus abdominis fascia causing an ovoid fissure, and the hernia sac protrudes through this ovoid fissure on the lateral side of the inferior abdominal artery, backward, and forward to form an inguinal hernia. If the girl suddenly appeared in the groin area after the mass, it is recommended to go to the hospital in time, under the guidance of the doctor to clarify the cause of the disease and then treatment.