Background and Aims: Umbilical hernia is one of the most common abdominal hernia, and surgical treatment is the only cure for this disease. With the development of endoscopic techniques, the application of endoscopy in hernia and abdominal wall surgery is constantly evolving. This study was conducted to evaluate the feasibility and safety of laparoscopic total extraperitoneal herniorrhaphy using a lateral approach for umbilical hernia in adults. 
Methods: From June 2019 to January 2020, 5 patients with umbilical hernia underwent laparoscopic total extraperitoneal hernia repair via lateral approach in the Department of General Surgery of Zhongshan Hospital affiliated to Xiamen University, including 3 males and 2 females, aged 30–53 years with an average age of 41.8 years at the time of consultation. The clinical data and follow-up results of the 5 patients were retrospectively analyzed.
Results: Operations were successfully completed in all the 5 patients. The average operative time was (70±5.8) min, the time to postoperative ambulation was 6–8 h, and the average length of postoperative hospital stay was (3.2±0.7) d. After operation, umbilical fluid collections occurred in 1 case, but no serious complications such as bleeding, ileus, intestinal fistula occurred. No recurrence was noted during follow-up period of 1 7 months.
Conclusion: Laparoscopic total extraperitoneal herniorrhaphy with lateral approach for adult umbilical hernia is safe and feasible. The operative difficulty of the lateral approach is relatively low and its clinical application may have broad prospects.