Under what circumstances is a colonoscopy necessary?

Colonoscopy is a common examination item, mainly to understand the blind area in the intestine, and it is the best choice to diagnose colorectal mucosal lesions if colonoscopy can be more accurately examined. Any inspection item has its own precautions, so it is important to understand these precautions before the inspection.

In fact, colonoscopy is not possible under any circumstances, usually colonoscopy is a test method taken when the patient has abdominal discomfort, abdominal pain, blood in the stool, black stool, and the stool test is positive for blood.

In addition, if there is a narrowing of the intestinal lumen, ulcers, polyps, cancers, polyps and other lesions, the purpose of which is to better take biopsies, clarify the lesions, understand the symptoms. When patients have metastatic adenocarcinoma, ulcerative colitis, Crohn and other diseases, in this case, colonoscopy is required, and the purpose of colonoscopy is to find the primary lesion, timely diagnosis and follow-up.

Generally, colonoscopy has a wide range, such as hemostasis, polyp removal, colorectal cancer high-risk groups, colorectal cancer and colorectal polyps postoperative reexamination, constipation and constipation, and difficult defecation.

In the process of colonoscopy, it may also cause adverse reactions such as bleeding and intestinal perforation due to improper operation, so that the patient will feel pain, generally after colonoscopy, the doctor will give a certain anti-inflammatory**, so as not to cause cross-infection, and at the same time require the patient not to eat immediately after the colonoscopy, it is best to eat some liquid food or light soup after an interval of two hours, if the patient has severe abdominal pain, he needs to go to the hospital immediately.

Although colonoscopy is very extensive, it is not suitable for everyone, such as those who are taking anticoagulants, menstruating women, patients with high blood pressure or diabetes, are not suitable for colonoscopy, therefore, colonoscopy is not suitable for everyone, and it needs to be decided according to the individual's physical condition.

1. Frequent abdominal pain and diarrhea.

Frequent abdominal pain and diarrhea may be related to chronic enteritis or colitis, usually the cause of chronic enteritis or colitis may be related to environment, bacterial infection or autoimmunity and other factors, so if you find that you always feel abdominal discomfort, you should go to the hospital in time to find out through colonoscopy; However, before having a colonoscopy, it is important to follow the doctor's instructions for preparations, such as fasting or medical colon cleansing.

2. Abnormal bowel movements.

If the number of bowel movements or the time of defecation is abnormal, it is necessary to pay attention to go to the gastroenterology department in time to pass the method of colonoscopy or ordinary colonoscopy for examination**; Especially for friends who have bleeding at the same time as defecation, it is even more necessary to have a colonoscopy to check whether there is proctitis or bleeding peptic ulcer, and then find it in time and relieve it by enema or internal medication.

3. Emaciated.

If you are abnormally emaciated and have intestinal discomfort, you should be alert to signs of intestinal tumors, such as rectal cancer, colon cancer, or colorectal cancer, which may not be general intestinal inflammation, but are usually identified by colonoscopy or pathological examination.

During the general physical examination, a colonoscopy can be performed to observe whether there are any lesions in the intestines. If the patient has prolonged pain in the lower abdomen or has frequent stools and watery stools, colonoscopy can also be done to rule out some lesions. If there is a suspicion of intestinal polyps, colonoscopy can also be done to observe the size of the polyps, and then choose the corresponding method.

In addition, colonoscopy can also be done in the presence of Crohn's disease and ulcerative colitis. Colonoscopy may also be done if the patient suddenly has abdominal pain or abnormal bowel movements.

If you are vomiting and have stomach pain, you may need a colonoscopy.

Colonoscopy should be done for all intestinal related diseases in the absence of contraindications, symptom examination cannot be used as the main diagnostic basis, endoscopy can be taken for biopsy, so almost all intestinal related symptoms should be examined.

Is a colonoscopy done to find out if there is a problem with the colon and rectum? If the patient has abnormal stool, such as constipation, blood in the stool, and pain in the lower abdomen, a colonoscopy is required.

If you feel frequent abdominal pain, and the timing and frequency of bowel movements are abnormal, and you will have blood in your stool, and you will be emaciated, you should have a colonoscopy.

Colonoscopy is also known as colonoscopy. It is mainly used for the diagnosis and treatment and screening of colorectal diseases and terminal ileal diseases.

The most important preparation before colonoscopy is to clean up the intestines of feces, as fecal and food residues can affect the results of colonoscopy. People with constipation should take laxative medications, most commonly lactulose, a week before the week.

Long-term abdominal pain and diarrhea, or blood in the stool, long-term stomach pain, long-term constipation and other conditions need to do colonoscopy, only colonoscopy can see the inside of the intestines, so as to confirm the diagnosis**.

General colonoscopy is currently the easiest, safest and most effective method to detect intestinal tumors and precancerous lesions. The patient will need to eat a liquid diet the day before the colonoscopy and fast on the morning of the examination. Colonoscopy may be performed for general abdominal pain, tenesmus, bloody stools, changes in bowel habits, chronic diarrhea, constipation, constipation, constipation, anemia, unexplained weight loss, and fatigue.

Long-term diarrhea, abdominal pain, constipation, internal hemorrhoids, intestinal polyps, and rectal cancer all need to be colonoscopy, which can effectively see the situation in the intestine and can have a good effect on intestinal disease examination.

If you suffer.

Patients with anorectal diseases need to do colonoscopy, anorectal diseases, changes in bowel habits, blood in the stool, mucus in the stool, abdominal pain and bloating in the stool, and abnormal shape of the stool, as well as diarrhea caused by unknown causes, etc., these are all required to do colonoscopy.

Colonoscopy is necessary for these 8 conditions.

Colonoscopy is an examination that shows the inner surface of the colorectum through a bendable, light-sourced tube, which can observe whether there are lesions in the entire intestinal lumen, and can also clamp small pieces of diseased tissue for pathological examination, which helps to clarify the diagnosis and judge the severity of the disease, and then guide **, such as the removal of colorectal polyps and early cancer under colonoscopy, and hemostasis under colonoscopy.

01 Those with symptoms such as blood in the stool, black stool, etc., or those with a positive long-term fecal occult blood test; Those with mucus, pus and blood in the stool; Those who have frequent and unformed stools, or diarrhea; Those who have recently had difficulty defecating or having irregular stools; Those who have thinned and deformed stools; Long-term chronic constipation, which cannot be cured for a long time;

02 Unexplained weight loss and emaciation; People with unexplained anemia; Unexplained abdominal mass, for which a clear diagnosis is required; Those with unexplained elevated CEA (carcinoembryonic antigen).

03 Patients with long-term abdominal pain and bloating; Chronic colitis, long-term medication, long-term treatment; Patients who have suffered from schistosomiasis, ulcerative colitis and other diseases;

04 Those who suspect colon tumors, but have negative barium enema and X-ray examination; Patients with thickened intestinal wall found by abdominal CT or other examinations, and colorectal cancer needs to be excluded; Lower gastrointestinal bleeding, the bleeding lesion can be found, the cause of bleeding can be determined, and the bleeding can be stopped microscopically if necessary; Those who have been found to have colon polyps that need to be removed under colonoscopy;

05 Colonoscopy should be rechecked regularly after colorectal cancer surgery: Generally, colonoscopy should be rechecked every 6 months to 1 year, if the colonoscopy fails to examine all the colons due to colon obstruction before surgery, colonoscopy should be performed 3 months after surgery to determine whether there are colon polyps or colon cancer in other parts;

06 Colonoscopy should be rechecked regularly after colorectal polyp surgery: villous adenoma, serrated adenoma and high-grade epithelial neoplasia polyps are easy to ** and cancerous, it is recommended to recheck the colonoscopy every 3-6 months, and it is recommended to recheck the colonoscopy every 12 months for other polyps, and if the re-examination colonoscopy is negative, it will be rechecked after 3 years;

07 Patients with a family history of colorectal cancer should undergo colonoscopy screening, and people with a family history of colorectal polyps should also undergo colonoscopy screening;

08 People over the age of 40, especially those with a long-term high-protein and high-fat diet and long-term alcoholism, it is best to have a colonoscopy for routine physical examination in order to detect some asymptomatic early colorectal cancer as early as possible.

When is a colonoscopy necessary? Colorectal cancer is the highest cancer incidence tumor, and with the improvement of China's national living standards, colorectal cancer is increasing, so for colorectal tumors, the best way is to do colonoscopy for screening. Because colonoscopy can not only detect early precancerous lesions, such as polyp adenoma, but also endoscopic ** can be performed on these lesions at the same time under endoscopy, polyps and adenoma are removed, once the polyp or adenoma is removed, then the risk of colon cancer in the next few years will be greatly reduced.

Therefore, people over the age of 50 should have regular colonoscopy to rule out precancerous lesions such as colon polyps and adenoma. In addition, for patients who have already had colon cancer, or have had colon polyps, or have a family history of colon cancer, colonoscopy should be done regularly.

In the case of stomach pain, a colonoscopy is required, because this condition is very serious, and if you don't do a colonoscopy, it will definitely make the condition worse, so we must pay attention to this aspect of the problem.

If there is gastrointestinal discomfort or gastrointestinal inflammation, colonoscopy should be performed, because in this way it can be better carried out**, and the cause of gastrointestinal discomfort can be analyzed.

For example, if there are some gastrointestinal diseases, a colonoscopy is required in this case, so that you can better understand the condition.

As soon as you reach middle age, you should have a colonoscopy.

Ultrasound colonoscopy is generally recommended in the following situations: Gastrointestinal bleeding occurs in the absence of a trigger. Prolonged constipation or diarrhea.

If there is a tumor on the colon, then if it is necessary to judge the nature of the specific tumor, or colonoscopy, the specific nature of the tumor can be judged well through colonoscopy, and the pathological examination results are also very accurate. Later, according to the results of the examination. Positive improvements.

Polyps, tumors, or tumor hemorrhages at the end of the large intestine or ileum. After colon surgery and colorectal cancer screening. Patients with a family history of colorectal cancer or adenoma may need to undergo colonoscopy.

......There are many frequent stools, loose stools, small abdominal distension and pain, and weight loss

Doctors generally use gastrointestinal endoscopy when encountering patients with the following indications: people over the age of 40, gastrointestinal discomfort such as epigastric pain, fullness, hiccups, acid reflux, nausea and vomiting, history of bleeding ulcers or abdominal pain, diarrhea and constipation alternately. The stool is deformed, bloody, or has a lump on oneself.

It also includes those who have doubts after an X-ray examination, or if a foreign body has entered the digestive tract.

The indications for electronic colonoscopy are quite wide, and electronic colonoscopy can be performed in any of the following situations without contraindications.

Unexplained lower gastrointestinal bleeding.

Unexplained chronic diarrhea.

Unexplained abdominal mass that cannot exclude lesions of the large intestine and terminal ileum.

Unexplained pain in the lower middle and lower abdomen.

Those who are suspected of benign or malignant colon tumors and cannot be diagnosed by X-ray examination.

Suspected chronic intestinal inflammatory disease.

Abnormalities on barium enema or enteric examination require further clarification of the nature and extent of the lesion.

The extent of colon cancer was determined before surgery, and the follow-up of colon cancer and polyp surgery was carried out.

Unexplained low-level intestinal obstruction.