Incisional hernia is a hernia that occurs at the surgical incision and is usually seen in the abdomen, especially in the longitudinal abdominal incision area. After abdominal surgery, the incidence of incisional hernia is usually less than 1% if the incision is healed in one stage, but it can be as high as 10% if the incision is infected; it can even be as high as 30% if the wound is dehiscent. Among the various commonly used abdominal incisions, the most frequent incisional hernia occurs through the rectus abdominis incision; the lower abdomen has more incomplete surfaces due to the posterior rectus abdominis sheath. This is followed by the median incision and the paramedian incision. Clinical presentation: The main symptom of an abdominal incisional hernia is the presence of a mass at the abdominal wall incision. The mass is usually more pronounced in the standing position or during exertion and shrinks or disappears at rest. After the mass is returned, abdominal wall defects can be palpated deep in the scar area. Larger incisional hernias have a pulling sensation in the abdomen. This is accompanied by loss of appetite, nausea, constipation, and vague abdominal pain. Most incisional hernias do not have an intact hernia sac, so the contents of the hernia can often adhere to the extraperitoneal abdominal wall tissue and become a difficult hernia, sometimes accompanied by partial intestinal obstruction. Diagnosis: 1. History of abdominal surgery. 2. 2. Repeatable mass in the surgical scar area. Treatment principle: mainly surgical treatment, only in old and frail people who cannot tolerate surgery or have intractable cough that cannot be controlled can use elastic bandages.