Diarrhea is often a diagnosis. According to the age of onset, gender, place of origin, occupation and other general information may provide clues for the diagnosis of TB more common in young adults such as intestinal, and colon cancer than in the elderly; hyperthyroidism, irritable bowel syndrome more common in women prevalent in the endemic area of schistosomiasis farmers and fishermen and so on.
Diarrhea is usually diagnosed Method 2. According to the onset and course of rapid onset with fever, diarrhea, more frequent, should give more consideration to intestinal infection caused by diarrhea; ulcerative colitis, irritable bowel symptoms together, malabsorption syndrome, cause diarrhea, for years, decades long, was intermittent attacks; colon cancer usually caused by the relatively short duration of diarrhea.
Diagnosis of diarrhea is usually 3. Defecation situation stool rectum and sigmoid colon lesions, multiple tenesmus, stool less time, sometimes only a small amount of gas and mucus discharge, fecal deeper, mostly mucus-like, can be mixed with blood; small intestinal disease shield in acute diarrhea per child, a paste or water stool samples; chronic disease, ulcerative colitis, schistosomiasis, cancer and other causes of diarrhea, often version of blood, stool, but several times a day; intestinal malabsorption who was greasy stool shape, and more foam, fetid, with food residue; diarrhea irritable bowel syndrome, multiple, and after getting up in the morning after breakfast, 2-3 times daily, sometimes feces contain large amounts of mucus; La jam amoebic disease found in stool samples; coffee or tarry stool samples found in upper gastrointestinal bleeding Ambassador.
4. Abdominal pain, diarrhea, intestinal disorders, pain often Cullen, so much does not alleviate pain after; colonic disease are more in the lower abdominal pain that often can relieve pain or reduce; acute infectious diarrhea often have abdominal pain; secretory diarrhea often No abdominal pain.
5. Also, asked if had had surgery and radiotherapy; whether there is diabetes, cirrhosis, chronic gastritis and taking medication, such as thyroid hormone tablets, laxatives and so on.
6. Stool examination is also important, especially acute diarrhea, if we consider the bacterial diarrhea, stool bacterial culture; chronic diarrhea, fecal fat droplets by staining, the diagnosis of fat malabsorption. Ambassador occult blood positive (except for anal fissure, ulcer bleeding and menstrual baked), to consider whether the colon cancer.
Diagnosis of diarrhea is usually 7. Digital rectal examination and rectal endoscopy diagnosis of chronic diarrhea is very important. Viremia, or fecal occult blood positive for the diarrhea patients were identified by endoscopy off the inflammatory bowel disease (segmental ileal inflammation, ulcer of the colon go far) and colon cancer.