Causes of intestinal obstruction

Written by Zhang Peng
General Surgery
Updated on October 27, 2024
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Generally, the basic causes of intestinal obstruction can be divided into three categories. The most common is mechanical intestinal obstruction, which mainly includes blockage of the intestinal lumen, such as large fecal masses or corresponding foreign objects, and even parasites. The second type is compression of the intestinal tube, which can be caused by adhesions leading to torsion of the intestine or compression by tumors, and congenital inflammatory strictures and tumors can cause mechanical intestinal obstruction. The second major category is dynamic intestinal obstruction, which is primarily due to weakened peristaltic ability of the intestine, resulting in paralytic intestinal obstruction. This condition can be improved by adjusting intestinal function disorders or treating intestinal spasms. The third type is intestinal obstruction caused by vascular issues in the intestines, most commonly thrombosis of the mesentery or compression causing vascular disorders of the intestines.

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Written by Zhang Peng
General Surgery
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Is intestinal obstruction dangerous?

Whether intestinal obstruction is dangerous depends on the actual individualized level. If the obstruction has progressed to symptoms of peritonitis, and if intestinal necrosis cannot be ruled out, not performing timely exploratory laparotomy surgery could potentially endanger the patient's life. However, if it is just a mild incomplete obstruction, with signs of passing gas and stools, and the patient’s abdominal symptoms are not pronounced, and related examinations are not concerning, then the risk to the patient might be relatively smaller. Therefore, in such cases, it is not possible to generalize, and decisions need to be made based on the individual situation.

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Written by Gao Tian
General Surgery
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Causes of intestinal obstruction

The causes of intestinal obstruction include factors external to the intestine and those originating from the intestine itself. External factors are mainly adhesions and bands of adhesions that cause intussusception or volvulus, thereby leading to intestinal obstruction. Congenital adhesive bands are common in children. Adhesions resulting from abdominal surgery or intra-abdominal inflammatory lesions are the most common causes of adult intestinal obstruction, although a minority of patients may have no history of abdominal surgery or inflammation. Additionally, incarcerated external or internal hernias may also cause intestinal obstruction. Furthermore, tumors external to the intestine or abdominal compression can also lead to obstruction.

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Symptoms of intestinal obstruction

For symptoms of intestinal obstruction, the typical manifestations are abdominal pain, bloating, vomiting, and cessation of passing gas or stool. Most people may experience several of these symptoms; however, the severity of the symptoms depends on the location and condition of the obstruction. Once symptoms of intestinal obstruction occur, it is necessary to refrain from eating and then carry out appropriate examinations. Identifying the cause of the obstruction is crucial. If the obstruction is caused by tumor-related factors, surgical treatment should be considered based on a comprehensive assessment. If the obstruction is due to adhesions, conservative treatment methods should be adopted where possible.

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Written by Gao Tian
General Surgery
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Symptoms of intestinal obstruction

The symptoms of intestinal obstruction generally manifest as abdominal pain, especially cunning types that can cause severe abdominal pain. Secondly, due to the blockage of the intestines by the obstruction, it can lead to vomiting of stomach acid, which is also greatly related to the location of the obstruction. Thirdly, there will be intestinal discomfort, which leads to some discomforts. Therefore, if the above symptoms appear, it is recommended to quickly visit the general surgery department to complete relevant examinations and intervene early based on the results to prevent further damage.

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Written by Zhang Peng
General Surgery
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How to relieve intestinal obstruction

How to alleviate intestinal obstruction, which means how to treat intestinal obstruction. After the occurrence of intestinal obstruction, it is first important to clarify what intestinal obstruction is. Intestinal obstruction is characterized by cessation of gas and stool passage from the anus, and is usually accompanied by symptoms such as abdominal distension, nausea, vomiting, and even fever. If intestinal obstruction occurs, firstly, do not eat or drink, and then carry out appropriate examinations to identify the cause of the obstruction. If it is adhesive obstruction, treatment generally includes fasting, gastrointestinal decompression, anti-inflammatory treatment, fluid replenishment, and enemas as symptomatic treatment measures, trying to keep the treatment as conservative as possible. If the obstruction is caused by a tumor, it is preferable to perform surgery to remove the obstruction based on a clear diagnosis, as this is the only effective treatment.