Extremely low blood pressure can develop in seconds (as with bleeding from trauma), in minutes (as with a peanut allergy), or over the course of hours (as with a worsening infection, such as toxic shock syndrome).
Eventually the contents start backing up.â. Here are the most common bowel obstruction symptoms: 1  Distended (swollen or bloated) abdomen. 2  Nausea. 3  Vomiting â color and texture of vomit may help diagnose the obstruction. 4  Change in bowel habits. 5  Constipation. 6  Very thin stools. 7  Blood in the stool, especially likely if cancer is a cause.
With a narrowed or blocked passage, digested food may not be able to pass through. Symptoms may include crampy abdominal pain (or stomach pain), vomiting, or bloating. A bowel obstruction is one of the most serious complications of this disease. In some cases, bowel obstructions require surgery (see Crohn's Disease Surgery).