In 1997, the filling tension-free hernia repair was introduced into China, and this procedure was widely used with the advantages of easy operation, small trauma, and low recurrence rate, but there were certain defects that prompted people to continuously seek improvement, and in 2001, Millikan first introduced and was named a modified procedure to achieve better efficacy, which is described as follows. 1. Data and methods 1.1 Clinical data There were 35 cases with 41 side hernias in this group, all male, aged 19-82 years, including 29 cases with 34 inguinal hernias and 6 cases with 7 inguinal straight hernias, among which, 3 cases with 4 sides of recurrent hernias, with the duration of disease ranging from 3 months to 36 years. 1.2 Surgical method A conventional oblique incision was made in the inguinal region, about 4 cm to 6 cm long, and the hernia sac was routinely freed to the inner ring. If the hernia sac was huge, the sac was transected, the distal end was opened and the proximal end was tightly sutured, the transverse abdominal fascia was circumferentially cut along the root of the hernia sac, and if there was an extraperitoneal lipoma, it was excised, and a large enough gap was circumferentially freed along the extraperitoneal gap under the transverse abdominal fascia to return the hernia sac, and a mesh plug was placed into the freed gap. The outer skirt of the mesh plug was laid flat in the extraperitoneal space and under the transversus abdominis fascia without fixation, and the inner flap of the mesh plug was fixed to the fascial tissue around the hernia ring (mainly the transversus abdominis fascia), and the outer side could be fixed to the free edge of the inguinal ligament, and the rest of the surgical steps were the same as the original tension-free hernia repair. 1.3 Results All cases in the group completed the operation successfully, and the operation time was 25min～50min; some patients had scrotal edema and small hematoma after the operation, all of them were patients with huge hernias and hernial sacs descending into the scrotum, which were absorbed by themselves or after physiotherapy, and 2 cases of subcutaneous plasmatic exudation, all of which were cured by physiotherapy and drug exchange, all of them felt more comfortable after the operation, with slight local pain and no obvious foreign body sensation, and no postoperative There was no local hard node-like protrusion, no infection, and no recurrence. All patients were out of bed from 6 hours to 12 hours after surgery, and the average hospital stay was 5.6 days. Since its introduction into China in 1997, the hernia ring filling tension-free repair technique has made up for the many shortcomings of traditional hernia repair, greatly reduced postoperative pain and discomfort, shortened postoperative rest time, significantly reduced postoperative complications, and reduced the postoperative recurrence rate of hernia from more than 10% to less than 1%, and has been widely used in hospitals at all levels nationwide and replaced traditional hernia repair to varying degrees. However, the postoperative complications of the original filling tension-free hernia repair are still embarrassing and very difficult to deal with. Local pain, hard lump-like bulging, and foreign body sensation in the incision are the most common complications, with some data reporting that they can be as high as 16.5% to 24%, and some patients have a long-term presence, which is very difficult to deal with. The reason for this may be that the mesh plug of the hernia-filled ring is high, which stimulates the peritoneum and the tissues around the incision, and after the outer skirt of the mesh plug is fixed in the tissues around the hernia ring, the inner petals of the mesh plug bulge outward under abdominal pressure, and when the surrounding tissues When the surrounding tissues grow into the mesh of the repair material in a large amount, it is fixed locally, resulting in the formation of a hard local bulge, foreign body sensation, pain, and long-term existence, which makes treatment difficult. In the Millikan procedure, the outer skirt of the mesh plug is laid flat in the extraperitoneal space and under the transverse abdominal fascia, and the inner flap of the mesh plug is fixed, which reduces the height of the mesh plug and distributes the pressure more evenly and widely when the abdominal pressure increases. The recurrence of post-operative tension-free hernia repair is an even greater headache for the surgeon, as a large amount of tissue grows into the mesh of the repair material after surgery, making it difficult to remove the repair material, difficult to free the recurrent hernia sac, and more difficult to repair. With the application, the outer skirt of the mesh plug is laid flat in the extraperitoneal space, strengthening the peritoneal sac. When the abdominal pressure increases, the local pressure is more evenly and widely distributed, reducing the pressure in the local defective area of the inguinal canal, and after the inner flap is fixed to the hernia ring, the mesh plug is slightly displaced, firmly filling the defective area of the hernia ring and reducing the chance of postoperative hernia recurrence. For individual physically idiosyncratic individuals with obvious local foreign body sensation, intolerance of the implanted material and plagioid exudation or even cysts after surgery, removal of the implanted material seems to be an appropriate treatment measure after most patients are treated with conservative treatment measures such as local dressing change, drainage, aspiration, pressure bandaging and physiotherapy. The advantages of Millikan as a modified procedure of tension-free hernia repair with filling are that the outer skirt of the mesh plug strengthens the peritoneal sac, which makes the local pressure distribution more extensive and uniform and reduces the pressure in the defective area of the inguinal canal, and the fixation of the inner flap makes the mesh plug fixed reliably and slightly displaced, which reduces the postoperative local pain and foreign body sensation and reduces the formation of local hard lump-like bumps after surgery and can more effectively It is a useful improvement and perfection of the tension-free hernia repair.