{"id":1483,"date":"2025-11-18T10:08:43","date_gmt":"2025-11-18T10:08:43","guid":{"rendered":"https:\/\/charis.com.vn\/?p=1483"},"modified":"2025-11-18T10:08:43","modified_gmt":"2025-11-18T10:08:43","slug":"noi-soi-dai-trang-nhung-dieu-ban-can-biet","status":"publish","type":"post","link":"https:\/\/charis.com.vn\/en\/noi-soi-dai-trang-nhung-dieu-ban-can-biet\/","title":{"rendered":"COLONOSCOPY: WHAT YOU NEED TO KNOW"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">Colonoscopy may sound scary, but don&#039;t worry! It&#039;s a simple, safe, and usually painless procedure. Most people don&#039;t even remember it because they&#039;re under light anesthesia. The most uncomfortable part is probably the preparation before the colonoscopy. This article will help you understand colonoscopy, how to prepare, and what to expect in an easy-to-understand, easy-to-remember way.<\/span><\/p>\n<p><b>What is colonoscopy?<\/b><\/p>\n<p><span style=\"font-weight: 400;\">Colonoscopy is a procedure in which a doctor uses a small tube with a camera to examine the inside of the colon and rectum. This procedure helps:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Find the cause<\/b><span style=\"font-weight: 400;\"> symptoms such as abdominal pain, bloody stools, or changes in bowel habits.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Detection and prevention of colorectal cancer<\/b><span style=\"font-weight: 400;\"> by removing small tumors called <\/span><b>polyp<\/b><span style=\"font-weight: 400;\">Most polyps are benign, but some can progress to cancer if left untreated.<\/span><\/li>\n<\/ul>\n<p><b>Who should have a colonoscopy?<\/b><span style=\"font-weight: 400;\"> In Vietnam, doctors recommend starting regular endoscopy from <\/span><b>45 years old<\/b><span style=\"font-weight: 400;\"> to prevent colorectal cancer, especially if you are at high risk (e.g., have a family history of colorectal cancer). According to Globocan 2022, Vietnam recorded nearly <\/span><b>17,000 new cases of colorectal cancer each year<\/b><span style=\"font-weight: 400;\">, with a rapidly increasing trend, especially among young people due to modern lifestyles.<\/span><\/p>\n<p><b>Preparation before endoscopy<\/b><\/p>\n<p><span style=\"font-weight: 400;\">For the colonoscopy to be effective, your colon needs to be completely cleaned out. Here are the steps to follow:<\/span><\/p>\n<ol>\n<li><b> Inform your doctor about your health condition<\/b><\/li>\n<\/ol>\n<p><span style=\"font-weight: 400;\">Tell your doctor if you have any of the following problems:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Pregnant.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Kidney, lung, or heart disease.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Allergic to any medication.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Are taking diabetes medication or blood thinners (such as aspirin). Your doctor may want to adjust your medication before your endoscopy.<\/span><\/li>\n<\/ul>\n<ol start=\"2\">\n<li><b> Change your diet<\/b><\/li>\n<\/ol>\n<p><span style=\"font-weight: 400;\">In <\/span><b>24-48 hours before endoscopy<\/b><span style=\"font-weight: 400;\">, you need:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Avoid eating solid foods<\/b><span style=\"font-weight: 400;\"> (rice, meat, raw vegetables).<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Use only clear liquid foods.<\/b><span style=\"font-weight: 400;\"> like:<\/span>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Filtered water, fruit juice without sediment.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Broth, soup.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Tea, coffee without milk.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Sports drinks (like Pocari Sweat).<\/span><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ol start=\"3\">\n<li><b> Colon cleansing<\/b><\/li>\n<\/ol>\n<p><span style=\"font-weight: 400;\">Your doctor will prescribe medication or give you instructions for bowel cleansing, which often include:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Take laxatives<\/b><span style=\"font-weight: 400;\"> (such as polyethylene glycol) to stimulate bowel movements. This medication is usually taken the night before the procedure or in two divided doses (the night before and the morning of the procedure).<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Enema<\/b><span style=\"font-weight: 400;\"> (enema) to clean the rectum, if needed.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Follow your doctor&#039;s instructions exactly to ensure a clean colon, allowing for an accurate endoscopy.<\/span><\/p>\n<ol start=\"4\">\n<li><b> Arrange for pick up<\/b><\/li>\n<\/ol>\n<p><span style=\"font-weight: 400;\">You will be lightly sedated during the endoscopy, so you will not be able to drive or operate machinery for at least <\/span><b>8 hours after the procedure<\/b><span style=\"font-weight: 400;\">. Ask a relative or friend to drive you home.<\/span><\/p>\n<p><b>Colonoscopy procedure<\/b><\/p>\n<p><b>During endoscopy<\/b><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">You will lie on your left side on the examination table.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The doctor injects a sedative into a vein (IV) so you are lightly asleep and feel no discomfort.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">A thin tube (about 1cm in diameter, with a camera and light attached) is inserted into the rectum. This tube allows the doctor to clearly observe the lining of the colon.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The doctor may pump air into the colon to get a better view.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">If polyps are found, your doctor may:<\/span>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><b>Polyp removal<\/b><span style=\"font-weight: 400;\"> right away.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><b>Tissue sampling<\/b><span style=\"font-weight: 400;\"> (biopsy) to check for cancer cells.<\/span><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">The procedure only lasts <\/span><b>20-30 minutes<\/b><span style=\"font-weight: 400;\">.<\/span><\/p>\n<p><b>After endoscopy<\/b><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">You will rest in the recovery room for about <\/span><b>30-60 minutes<\/b><span style=\"font-weight: 400;\"> to stay awake.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">You may feel a little bloated or have mild cramps from the gas being pumped into your colon, but this will pass quickly.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">You can eat and drink normally immediately after leaving the hospital, unless your doctor tells you otherwise.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">If a polyp is removed or biopsied, your doctor may ask you to avoid taking blood thinners (such as aspirin) for 1-2 days.<\/span><\/li>\n<\/ul>\n<p><b>Things to note after endoscopy<\/b><\/p>\n<p><span style=\"font-weight: 400;\">Colonoscopy is very safe, but rare complications such as bleeding or perforation of the colon can occur. <\/span><b>Contact your doctor immediately<\/b><span style=\"font-weight: 400;\"> If you encounter:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Heavy or prolonged bleeding.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Severe abdominal pain.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Fever or chills.<\/span><\/li>\n<\/ul>\n<p><b>How to prevent colorectal cancer?<\/b><\/p>\n<p><span style=\"font-weight: 400;\">Colonoscopy is the most effective way to detect and prevent cancer early. In addition, you can reduce your risk by:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Eat healthy<\/b><span style=\"font-weight: 400;\">: Increase green vegetables and fruits, limit red meat and processed foods.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Do exercise<\/b><span style=\"font-weight: 400;\">: 30 minutes a day, 5 days a week.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Limit alcohol and quit smoking<\/b><span style=\"font-weight: 400;\">.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Regular health check-ups<\/b><span style=\"font-weight: 400;\">: Especially if you have a relative with colon cancer.<\/span><\/li>\n<\/ul>\n<p><b>Conclude<\/b><\/p>\n<p><span style=\"font-weight: 400;\">Colonoscopy is not as scary as you think! It is an important tool for protecting your health, helping to detect polyps early and prevent colorectal cancer. Just prepare well, follow your doctor&#039;s instructions, and you will undergo the procedure easily.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">If you are over 45 or have unusual symptoms (abdominal pain, bloody stools), do not hesitate to see a doctor. Early detection can save your life!<\/span><\/p>\n<p><b>Data sources<\/b><span style=\"font-weight: 400;\">:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Globocan 2022 (updated 2024) on colorectal cancer rates in Vietnam: <\/span><a href=\"https:\/\/gco.iarc.fr\/\"><span style=\"font-weight: 400;\">IARC \u2013 Globocan<\/span><\/a><span style=\"font-weight: 400;\">.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Information from K Hospital and Ho Chi Minh City Oncology Hospital on the number of cases: Vietnam Public Health Report 2024.<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<p>N\u1ed9i soi \u0111\u1ea1i tr\u00e0ng nghe c\u00f3 v\u1ebb \u0111\u00e1ng s\u1ee3, nh\u01b0ng \u0111\u1eebng lo! \u0110\u00e2y l\u00e0 m\u1ed9t th\u1ee7 thu\u1eadt \u0111\u01a1n gi\u1ea3n, an to\u00e0n v\u00e0 th\u01b0\u1eddng kh\u00f4ng \u0111au. H\u1ea7u h\u1ebft m\u1ecdi ng\u01b0\u1eddi th\u1eadm ch\u00ed kh\u00f4ng nh\u1edb g\u00ec v\u00ec \u0111\u01b0\u1ee3c g\u00e2y m\u00ea nh\u1eb9. \u0110i\u1ec1u kh\u00f3 ch\u1ecbu nh\u1ea5t c\u00f3 l\u1ebd l\u00e0 b\u01b0\u1edbc chu\u1ea9n b\u1ecb tr\u01b0\u1edbc khi n\u1ed9i soi. B\u00e0i vi\u1ebft [&hellip;]<\/p>","protected":false},"author":2,"featured_media":1487,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1483","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>N\u1ed8I SOI \u0110\u1ea0I TR\u00c0NG: NH\u1eeeNG \u0110I\u1ec0U B\u1ea0N C\u1ea6N BI\u1ebeT - Charis Healthcare<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/charis.com.vn\/en\/noi-soi-dai-trang-nhung-dieu-ban-can-biet\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"N\u1ed8I SOI \u0110\u1ea0I TR\u00c0NG: NH\u1eeeNG \u0110I\u1ec0U B\u1ea0N C\u1ea6N BI\u1ebeT - Charis Healthcare\" \/>\n<meta property=\"og:description\" content=\"N\u1ed9i soi \u0111\u1ea1i tr\u00e0ng nghe c\u00f3 v\u1ebb \u0111\u00e1ng s\u1ee3, nh\u01b0ng \u0111\u1eebng lo! \u0110\u00e2y l\u00e0 m\u1ed9t th\u1ee7 thu\u1eadt \u0111\u01a1n gi\u1ea3n, an to\u00e0n v\u00e0 th\u01b0\u1eddng kh\u00f4ng \u0111au. 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