Constipation Diagnosis

The diagnosis of constipation is based on clinical symptoms, the current generally diagnostic criteria include small and hard stool, defecation difficulties, anal tenesmus, the number of weekly bowel movements less than 2 or 3 times. Constipation is confirm diagnosed by some tests.

1. Defecography. To barium paste into the rectum subjects, in the X-ray observation of the anal canal, rectum and defecation in resting morphological changes in the process of rectal constipation can provide a reliable diagnosis based on can be diagnosed rectal prolapse, rectocele, pelvic floor hernia, puborectalis syndrome.

2. Colonic transit test. Not through X-ray markers most commonly used method is usually used 20 markers, the size of each piece costs markers 2.5 mm × 1 millimeters high-pressure steam into the capsule after disinfection. After the oral capsule, taken every 24 hours of abdominal plain film one, until the first five days, or 80% so far from the markers. Generally normal, 80% of the markers from within 72 hours. To determine whether it can be due to slow gastrointestinal transit constipation caused.

3. Anorectal manometry, pelvic floor electromyography. Can tell the muscles to assist the defecation function, the diagnosis of rectal constipation also have a certain value.

4. Fiber colonoscopy. Although not directly helpful in the diagnosis of constipation, but may exclude other organic diseases of the large intestine, and sometimes need to make this check.