Defecation is a kind of nerve reflex movement, which causes the center of the body's defecation reflex, including the higher center of the cerebral cortex and the sacral defecation center. The higher center has a certain control effect on the lower center.

The impulse process is as follows : when feces enter the rectum, the inflation of the rectum indirectly stimulates the baroreceptors at the end of the rectum, and then the afferent impulses are transmitted to the fecal center along the afferent fibers of the sacral and hypogastric nerves.

The impulse from the central nervous system, along the parasympathetic nerve of the pelvic nerve, will easily lead to the contraction of the descending colon, the sigmoid colon and the rectum. At this time, the internal sphincter in the anus relaxes reflexively.

At the same time, the contractility of the outdoor sphincter is strengthened. Under normal circumstances, the defecation reflex is carried out under the control of the cerebral cortex, but if the defecation environment does not allow or intentionally interrupts defecation , the impulse transmitted from the cerebral cortex can inhibit the defecation center of the sacral spinal cord. Activity.

Strengthen the contractility of the external sphincter, the internal sphincter will passively compress the rectum to reflex expansion, the stool "reverses" the rectum, and the meaning of stool gradually disappears.

What does normal stool look like?

shape

The soft stool is not sticky in shape, showing a strip of soft stool. In the urinal, it can float on the water surface without sticking, and the water will be clean after flushing.

frequency and habits

Defecation habits and frequency vary from person to person. It is best to get up early to defecate once a day. If there is no difficulty in defecation and other discomfort, defecation once every 1 to 3 days is not considered constipation, and defecation not more than 3 times a day is not considered diarrhea. .

What's the matter with the stool "hard in the front, soft and sticky in the back"? Doctor: or related to 3 reasons

get angry

If the stool stays in the intestines for a long time, the anger will easily make the body dehydrated. This problem will easily lead to dry stool. The newly generated stool water has not been evaporated in time, which will easily cause the front to be dry and hard and the back to be soft and sticky. There was a problem.

If such a situation occurs, you can drink more chrysanthemum tea in your daily life, so as to achieve the effects of clearing liver fire, dispelling wind-heat, clearing heat and detoxifying, etc., which can help improve the phenomenon of soft and sticky after defecation. , and can also improve the problem of dry mouth and bad breath caused by high anger.

Intestinal polyps

When the stool is dry at the beginning, and then the stool starts to become soft, it is also suspected that this problem is caused by intestinal polyps.

Intestinal polyps timely determine the nature, size and degree of harm of polyps , which are particularly important for these problems. Because adenoma-like polyps will easily lead to the appearance of cancer cells during the continuous development of polyps, it will be more likely to induce the Chang'an phenomenon at this time.

If intestinal polyps are not treated early, with the development of the disease , the patient will be prone to diarrhea, alternating constipation and other problems, and sometimes it is easy to bring blood in the stool.

When the intestinal polyps reach a certain volume, it will easily lead to the narrowing of the intestinal lumen. At the beginning of defecation, the feces are likely to be hard and difficult to be discharged smoothly. The problem of not going out, so the stool behind will also become soft.

Spleen deficiency and cold

Soft stools before and after may also be caused lack of body fluids and malnutrition in the body.

The accumulation of water in the body cannot be metabolized normally, and it will be easily converted into water and dampness, which is one of the reasons for spleen deficiency.

The soft and sticky back of the stool is caused by the deficiency and cold of the spleen, which cannot be maintained .