What are the intestinal examinations for physical examination

During a physical examination, intestinal examination usually includes routine stool examination, colonoscopy, abdominal CT scan, barium enema examination, and capsule endoscopy examination.

1. Fecal routine examination

Fecal routine examination mainly involves collecting fecal samples and examining indicators such as red blood cells, white blood cells, and parasites. This examination can preliminarily screen for issues such as intestinal bleeding and intestinal infections. The inspection process is simple and non-invasive, suitable as a routine screening item. It is recommended to avoid consuming foods containing pigments or high iron content for 3 days before sampling.

2. Colonoscopy

Colonoscopy is an important method for evaluating intestinal health, which is divided into two types: colonoscopy and enteroscopy. Before the examination, it is necessary to prepare the intestines. Electronic endoscopy can visually observe the condition of the intestinal mucosa and detect lesions such as polyps, ulcers, and tumors. Biopsy or treatment can be performed simultaneously during the examination process. Although there may be some discomfort, it is possible to comprehensively evaluate the condition of the colon and ileocecal area.

3. Abdominal CT examination

Abdominal CT examination can show structural abnormalities such as thickening of intestinal walls and enlargement of lymph nodes. This examination does not require intestinal preparation and the process is fast. The use of 3D reconstruction technology can clearly display the morphology of the intestine and the relationship between surrounding tissues, which is of great value in evaluating the staging of intestinal tumors. But the detection rate of early mucosal lesions is lower than that of colonoscopy.

4. Barium enema examination

Barium enema examination evaluates intestinal morphology by taking X-rays after injecting contrast agent. This method is suitable for observing intestinal structural abnormalities such as diverticula, stenosis, etc. The examination process requires clean enema preparation, which can clearly display the contour of the colon but is not sensitive to early lesions. Currently, it is mostly used as an alternative examination for patients with contraindications to colonoscopy.

5. Capsule endoscopy

Capsule endoscopy involves swallowing miniature camera capsules to capture images of the digestive cavity. This method is particularly suitable for detecting small intestinal lesions and can work continuously for 8-12 hours. The examination is comfortable and non-invasive, but the effectiveness of colon examination is limited because the capsule may not pass through the colon completely. Fasting for 8 hours is required before the examination. The selection of intestinal examination methods should consider individual health status, medical history, and examination objectives. It is recommended that people over the age of 40 undergo regular screening for colon cancer, and those with a family history should reach the age of 35 in advance. Maintaining good dietary habits and regular exercise can contribute to intestinal health. If symptoms such as bloody stool and changes in bowel habits occur, seek medical attention promptly.