To sum up the clinical features and therapeutic experiences with accessory necrosis caused by incarcerated inguinal hernia in female infants.

A retrospective analysis was performed on the clinical manifestations, examinations, and therapeutic effects in 94 cases of incarcerated inguinal hernia in female infants from March 2014 to December 2018 at Department of General and Neonatal Surgery of Affiliated Kunming Children's Hospital of Kunming Medical University.

All the 94 cases were found with an inguinal mass. 51 cases were considered with accessory incarceration by color Doppler ultrasound, 11 cases with intestinal incarceration, 7 cases with omental incarceration, and 25 cases with unknown substance incarceration. After emergency operation, 61 cases were confirmed with accessory incarceration, 19 cases were accessory necrosis, and 3 cases with intestinal incarceration, the rest 30 cases recovered spontaneously. Among the 19 cases of accessory necrosis, 17 cases underwent resection and 2 cases refused resection. One case recurred after operation.

The incidence of accessory necrosis (mostly ovary and part of oviduct) caused by incarcerated inguinal hernia in female infants is relatively high, and it should be diagnosed early and treated promptly to decrease the risk of resection of accessory necrosis. Color Doppler ultrasound is an important method for the diagnosis of incarcerated inguinal hernia with accessory.