Tummy pain that cannot be relieved is caused by constipation and intestinal obstruction, which can be diagnosed by stereoscopic plain film examination. Poor dietary and lifestyle habits can lead to slow intestinal peristalsis, thus inducing constipation. The stools of constipated patients become abnormally dry due to excessive water absorption in the intestinal system over a long period of time. The process of defecation can cause irritation to the intestinal wall, so not only is it difficult to defecate, but it can also be accompanied by abdominal pain. If the pain in the stomach does not release the stool and the exhaustion stops, you should be alerted to intestinal obstruction. The common causes of intestinal obstruction include fecal blockage and intestinal stacking, which can cause the contents of the intestine not to pass. This causes an accumulation over the obstruction, resulting in an over-expansion of the intestinal cavity that causes pain, and a cessation of bowel movements because the contents cannot pass.