Low stool volume

Introduction Constipation is often an early symptom of malignant transformation of the rectum. This kind of constipation is often accompanied by blood in the stool. The blood carried by the feces is mostly blood, and the amount on the surface of the feces is small. Sometimes such constipation patients are also accompanied by symptoms of rectal irritation, such as frequent stools, small amount, frequent intentions, incomplete bowel movements, and anal fall. Long-term constipation, due to the harmful substances produced in the body can not be discharged in time, is absorbed into the blood and cause abdominal distension, loss of appetite, odor in the mouth (bad breath), irritability and other symptoms of autotoxicity; in addition to making the body fat, skin aging, It can also cause anemia, anal fissure, hemorrhoids, rectal ulcers, and increase the incidence of rectal cancer.

Cause

Rectal malignancy refers to the malignant transformation between the tooth line and the rectosigmoid junction, and is one of the most common malignant malignant changes in the digestive tract. The rectal malignant position is low, and it is easy to be diagnosed by rectal examination and sigmoidoscopy. However, due to its location in the pelvic cavity, the anatomical relationship is complicated, the operation is not easy, and the recurrence rate is high. The malignant transformation of the middle and lower rectum is close to the anal sphincter. It is difficult to preserve the anus and its function during surgery. It is also a difficult problem in surgery. The median age of onset of rectal malignancy in China is around 45 years old. The incidence of young people has an increasing trend.

Rectal malignancy is a lifestyle disease. At present, it has jumped to the second place in the list of malignant diseases. The occurrence of rectal malignancy is mainly related to high-fat, low-fiber diet and no exercise. This diet is also common in white-collar workers. Many white-collar workers don't care about one or two days without defecation. They think it's no big deal. However, it will become more and more difficult to dry in the intestines, and damage the intestinal wall for a long time, leading to accumulation of toxins, cytopathic diseases, and causing malignant transformation of the rectum.

an examination

Related inspection

Proctoscopy gastrointestinal CT examination

First, rectal examination

About 90% of the rectal malignant transformation, especially the lower rectal malignant transformation, can be found only by finger examination. However, there are still some doctors who do not perform this routine examination on patients with suspected rectal malignant transformation, which delays diagnosis and treatment. In fact, this method of diagnosis is simple and feasible. After rectal examination, it can also determine the size and degree of infiltration of the mass, whether it is fixed, whether there is extra-intestinal wall, implanted mass in the pelvic cavity.

Second, proctoscopy or sigmoidoscopy

Rectal examination should be performed after digital rectal examination. The diagnosis should be assisted under direct vision. The shape, upper and lower edges and distance from the anal margin of the mass should be observed. The tumor tissue should be taken for pathological biopsy to determine the nature of the mass and its differentiation. Located in the rectum, the upper part of the malignant swelling, fingers can not be touched, using sigmoidoscopy is a better method.

Third, barium enema, fiber colonoscopy

The diagnosis of rectal malignancy does not help much, so it is not classified as routine examination, only to exclude the multiple malignant transformation of colorectal.

Differential diagnosis

Differential diagnosis of less stool:

1, constipation with severe abdominal pain: constipation with severe abdominal pain, bloating and vomiting and other symptoms, often prompted for acute constipation.

2, constipation with abdominal mass: constipation with abdominal mass, may be colon tumor, intra-abdominal tumor compression colon, intestinal tuberculosis, Crohn's disease (Crohn disease) or swollen lymph nodes. Intestinal tuberculosis is the most common tuberculosis in the digestive system. The vast majority are secondary to extraintestinal tuberculosis, especially hollow tuberculosis. According to statistics, 25% to 50% of tuberculosis patients can be complicated by intestinal tuberculosis. The source of intestinal tuberculosis is mainly ingestive, caused by swallowing sputum containing tubercle bacilli, occasionally from food contaminated by tuberculosis, or directly from blood-borne or abdominal, pelvic other organs spread. The age of onset is mostly young and middle-aged, with more women than men, about 1.85:1. Pathologically divided into ulcer type, proliferative type and mixed type.

3, abnormal stool discharge process: abnormal stool discharge process (urgency, defecation, and effort) is one of the clinical diagnosis of irritable bowel syndrome. Irritable bowel syndrome (IBS) is a type of gastrointestinal function that is associated with chronic or recurrent abdominal pain, diarrhea, bowel habits, and abnormal bowel traits, and lacks gastrointestinal structural or biochemical abnormalities. The syndrome is often associated with other functional diseases of the gastrointestinal tract such as gastroesophageal reflux disease (GERD) and functional dyspepsia (FD).

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