Hypotonia is one of the clinical signs of constipation, which is caused by the involvement of organs related to atherosclerosis. So what are the common tests for hypotonicity of the intestine? The following is a brief introduction for you. First, stool examination: the examiner should strive to make a visual inspection of the stool excreted by the patient at one time, roughly estimate its weight and observe its physical properties. Stool routine and occult blood test are routine examination contents, and the shape, quantity, too small, hardness, presence of pus and blood and mucus of stool should be carefully observed. In rectal type constipation, due to rectal smooth muscle relaxation, the stool is mostly in the form of hard lumps. Second, blood biochemical examination: mainly for the endocrine and metabolic factors that can lead to intestinal hypotonia for examination. In recent years, the relationship between intestinal hormones and intestinal hypotonia has attracted attention foreign scholars have done some work, but the conclusion is not yet clear, and less work has been done in this area in China. Defecography: simulate the process of defecation, study the anus, rectum, pelvic floor in the defecation, dynamic and static changes in the image, for the diagnosis of export obstruction constipation, such as rectal protrusion, pelvic floor loss of relaxation, puborectal muscle syndrome, etc. Fourth, rectal palpation: the finger is free and flexible, sensitive to the contact, sensitive to the rectum, anus, prostate, cervical body at the subtle nodes, ulcers, polyps, scars, etc., and sometimes even more accurate information than endoscopic X-ray examination, which is valuable for the diagnosis and treatment of constipation.