Colonoscopy, Gastroenterology and Hepatology FAQ

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Understanding Left Lower Abdominal Gas: Causes and When to Seek Help

Left lower abdominal gas? Hello Doctor, I would like to ask about a recent issue I've been experiencing. For some time now, I've been feeling gas in my lower left abdomen, sometimes accompanied by sounds or bowel sounds. I can clearly feel gas passing through the intest...


Dr. Chen Shidian Reply:
Normal flatulence is expected; a negative stool test allows for monitoring of symptoms.

[Read More] Understanding Left Lower Abdominal Gas: Causes and When to Seek Help


Understanding Rectal Bleeding: Causes, Diagnosis, and Next Steps

Recurrent hematochezia? Two weeks ago, I started experiencing blood in my stool, and there was blood on the toilet paper when I wiped. I went to the hospital for an examination, and after the doctor performed a digital rectal exam, he said there was no bleeding from the rectum an...


Dr. Yang Zhichao Reply:
Hello Mr. VC, please complete the colonoscopy to confirm that there are no tumors or other bleeding phenomena. The majority of bleeding causes are still internal hemorrhoids or anal fissures.

[Read More] Understanding Rectal Bleeding: Causes, Diagnosis, and Next Steps


Understanding IBS: Why Travel Relieves Diarrhea and Abdominal Pain

Recurrent abdominal pain, flatulence, and diarrhea? Hello, doctor. At the end of April, I experienced discomfort in my stomach, so I underwent an upper gastrointestinal endoscopy and a colonoscopy in May. The results showed that there were no issues with the colon, but there was ...


Dr. Cai Jinji Reply:
Hello Mr. Jack: It may be advisable to discuss with your physician whether to first evaluate the situation regarding the original gastroscopy, colonoscopy, and CT scan. Dr. Cai Jin-ji, Department of Hepatobiliary and Gastroenterology, Nantou Hospital.

[Read More] Understanding IBS: Why Travel Relieves Diarrhea and Abdominal Pain


Understanding Diarrhea and Hemorrhoids: Key Questions Answered

Questions about diarrhea and hemorrhoids? Hello Doctor, I have not experienced diarrhea from January to June of this year, and my bowel movements have been regular with well-formed stools. Occasionally, I had small pellet-like stools, but there was some blood in my stool intermit...


Dr. Cai Jinji Reply:
Hello Ms. Chen: If there is no improvement, it is recommended to consult a gastroenterologist to see if further examination is needed. Director Cai Jin-ji, Department of Hepatobiliary and Gastroenterology, Nantou Hospital.

[Read More] Understanding Diarrhea and Hemorrhoids: Key Questions Answered


Understanding Bowel Movements and Gas: Is It Irritable Bowel Syndrome?

I have been experiencing intestinal peristalsis and issues with flatulence over the past few days? Hello, doctor. I previously asked some questions regarding gastroesophageal reflux, fresh blood on toilet paper after bowel movements, and abdominal tenderness upon palpation. Curre...


Dr. Chen Shidian Reply:
Fruits and vegetables/dietary fiber can promote peristalsis/bowel movements/gas expulsion, so please adjust the intake accordingly.

[Read More] Understanding Bowel Movements and Gas: Is It Irritable Bowel Syndrome?


Understanding IBS: Is Stress the Cause of Your Chronic Diarrhea?

Irritable Bowel Syndrome (IBS) Diagnosis Issues Hello Dr. Chen, I have been experiencing long-term constipation for six months, primarily characterized by diarrhea, mostly yellow in color. In May, due to gastrointestinal discomfort, I underwent a series of tests. The gastroscopy ...


Dr. Chen Shidian Reply:
If the abnormal intestinal motility is solely caused by diet or lifestyle, adjustments can be made. However, if symptoms persist after making these changes, it is advisable to seek medical attention for further management.

[Read More] Understanding IBS: Is Stress the Cause of Your Chronic Diarrhea?


Understanding Chronic Abdominal Discomfort: Constipation or IBS?

Chronic recurrent abdominal discomfort? Hello Doctor, I have been experiencing constipation issues (about every 3-4 days or longer for a bowel movement). A year or two ago, I suddenly noticed a slight dull pain around my lower abdomen near the navel. I still have bowel movements ...


Dr. Cai Anshun Reply:
Hello: Constipation can lead to fecal impaction or irritable bowel syndrome. Even if you have soft stools every 3-4 days, it is still recommended to develop a daily bowel movement habit and to ensure adequate hydration and intake of fruits and vegetables. Changhua Hospital cares ...

[Read More] Understanding Chronic Abdominal Discomfort: Constipation or IBS?


Understanding Rectal Bleeding: Insights on Tubular Adenoma and Symptoms

Blood in stool issue? Hello doctor, I noticed pink blood on the toilet paper after having a bowel movement one day, and I do not have hemorrhoids. On that day, I went to the bathroom three times, and there was blood on the stool's surface, but when I opened the stool, there ...


Dr. Lin Minghui Reply:
Possible causes of bloody stools include hemorrhoids, anal fissures, inflammation, polyps, tumors, and cancer. A colonoscopy revealed a 0.6 cm tubular adenoma in the rectum, which may be the cause of the bloody stools. If there are any other concerns, it is recommended to follow ...

[Read More] Understanding Rectal Bleeding: Insights on Tubular Adenoma and Symptoms


Understanding Diarrhea: When to See a Gastroenterologist or Psychologist

Diarrhea issues? Hello Doctor: I used to have normal bowel movements at irregular times every day (normal without any issues). However, starting in June of this year after losing my job, I began experiencing diarrhea (I have had similar diarrhea issues in the past that varied in ...


Dr. Chen Shidian Reply:
It may still be an irritability syndrome. Management should focus on lifestyle and dietary habits (reducing oil, dairy, and coffee), along with medications for gastrointestinal symptoms and anxiety. Adjustments can be made based on the response.

[Read More] Understanding Diarrhea: When to See a Gastroenterologist or Psychologist


Chronic Abdominal Pain: Understanding Complications and Treatment Options

Abdominal pain persisting for over a year accompanied by multiple complications? Hello, doctor. Since February of last year, I have been experiencing abdominal pain every night, and sometimes I have to rush to the bathroom in the middle of the night. At that time, my bowel moveme...


Dr. Chen Shidian Reply:
If the weight is normal, irritable bowel syndrome (IBS) may be the most likely cause. In addition to using gastrointestinal medications for management, a stool occult blood test can be conducted. If necessary, a referral to a mental health specialist may help with anxiety control...

[Read More] Chronic Abdominal Pain: Understanding Complications and Treatment Options


Does Diarrhea Have a Stronger Odor Than Normal Bowel Movements?

Does diarrhea smell worse than usual bowel movements? Hello doctor, I usually experience constipation, so my stool tends to have a stronger odor than average. However, I have been monitoring the color and shape of my stool, and it consistently has a similar smell. I don't of...


Dr. Chen Shidian Reply:
The odor is inevitable and unrelated to the polyps. Be sure to stay hydrated.

[Read More] Does Diarrhea Have a Stronger Odor Than Normal Bowel Movements?


Morning Abdominal Discomfort: Understanding Causes and Solutions

Morning abdominal "pain" issue? Hello doctor, I have been experiencing abdominal discomfort for a long time (about 3-4 years). Often, when I wake up in the morning, I feel pain around the area approximately three fingerbreadths to the left of my navel. This pain is not ...


Dr. Chen Shidian Reply:
There should be no major issues with the gastrointestinal tract, and it can be monitored further. The likelihood of neuropathic pain is also low.

[Read More] Morning Abdominal Discomfort: Understanding Causes and Solutions


Understanding Tumor Markers: CA 19-9 and Gastrointestinal Health

Tumor markers Hello, on May 25th, I had a check-up with a colorectal specialist due to blood in my stool, and the cause of the bleeding was identified as an anal fissure. I also requested a colonoscopy, which is scheduled for June 14th. On May 25th, I had blood tests and an X-ray...


Dr. Chen Shidian Reply:
The accuracy of CA 19-9 is low (with many false positives), making it unsuitable for screening or diagnosis; it should only be used for postoperative monitoring, so there is no need to worry at this time. You can proceed with the endoscopy first and then schedule an appointment w...

[Read More] Understanding Tumor Markers: CA 19-9 and Gastrointestinal Health


Understanding Bowel Issues: When to Seek Medical Advice

Bowel issues Hello, doctor. My bowel movement frequency is considered normal, occurring once every 1-2 days. I drink plenty of water and exercise regularly, but my stools are still somewhat hard and appear to be small, stacked pieces. There is no blood in my stools, but the size ...


Dr. Hu Guozheng Reply:
Diet, lifestyle, and stress can all affect bowel movements. If you need to undergo an examination, please consult the colorectal surgery outpatient clinic. Thank you.

[Read More] Understanding Bowel Issues: When to Seek Medical Advice


Should You Get a Colonoscopy After Rectal Bleeding and Hemorrhoids?

If you do not understand the report, should you undergo a colonoscopy? Due to the presence of blood in the stool, a rectoscopy and anal examination were performed. The doctor mentioned that there was no evidence of bleeding within the intestines, but noted an engorged internal he...


Dr. Chen Shidian Reply:
The content highlights the presence of mild internal hemorrhoids accompanied by bleeding.

[Read More] Should You Get a Colonoscopy After Rectal Bleeding and Hemorrhoids?


Understanding Chronic Morning Abdominal Pain: Possible Causes and Solutions

Long-term abdominal pain upon waking up in the morning? Hello Doctor, I have been experiencing abdominal discomfort for a long time (about 3-4 years). I often feel pain in the area about three fingerbreadths to the left of my navel when I wake up in the morning. This pain is not ...


Dr. Cai Anshun Reply:
Hello: It is advisable to first undergo an upper gastrointestinal endoscopy to rule out any gastric issues. Additionally, please avoid tea (black tea/green tea/milk tea), coffee, chocolate, sweets, spicy foods, fried foods, high-fat, and high-protein foods. Changhua Hospital care...

[Read More] Understanding Chronic Morning Abdominal Pain: Possible Causes and Solutions


Understanding Your Gastrointestinal Health: Risks and Follow-Up Care

Issues related to gastrointestinal endoscopy? First of all, thank you very much for your response, Doctor. I still have some concerns regarding my previous question that I would like to clarify. You mentioned that my colonoscopy and gastroscopy results were normal, which is good ...


Dr. Chen Shidian Reply:
It has been calculated since the last examination date. Additionally, further weight loss can also reduce the risk of cancer.

[Read More] Understanding Your Gastrointestinal Health: Risks and Follow-Up Care


Understanding Gastrointestinal Concerns: Anxiety, Fatigue, and Cancer Risks

Gastrointestinal issues consultation? Hello Doctor, I am a 41-year-old male, 172 cm tall and weighing 80 kg. I have been suffering from anxiety disorder, obsessive-compulsive disorder, and hypochondriasis for over ten years. I have long-term issues with fatigue and poor sleep qua...


Dr. Chen Shidian Reply:
First of all, it's understandable to have concerns. However, based on the information you provided, your colonoscopy and gastroscopy results are normal, which is good news and indicates no cancer risk in the short term (1-3 years). It is advisable to collaborate with a menta...

[Read More] Understanding Gastrointestinal Concerns: Anxiety, Fatigue, and Cancer Risks


Blood After Bowel Movements: Causes and When to Seek Help

Bleeding after bowel movements? Doctor, hello. Recently, I've noticed blood after having a bowel movement. When I wipe with toilet paper, there's a significant amount of blood. My stools are about the size of a 50-cent coin, and I go about every two days, experiencing b...


Dr. Cai Anshun Reply:
Hello: It is recommended to follow up with the colorectal department for another endoscopy at Changhua Hospital to monitor your health. Dr. Tsai An-Shun.

[Read More] Blood After Bowel Movements: Causes and When to Seek Help


Follow-Up Guidelines for Benign Colon Polyp Removal: Timing and Recommendations

Follow-up after colon polypectomy? Hello, doctor. I had a colonoscopy two years ago where two polyps were removed. If the removed colon polyps were benign and approximately 0.5 cm in size, how long should I wait for the next follow-up examination (2-3 years or 3-5 years)? Thank y...


Dr. Chen Shidian Reply:
In Taiwan, it can be done in a shorter time frame, while in the United States, it typically takes 3 to 5 years.

[Read More] Follow-Up Guidelines for Benign Colon Polyp Removal: Timing and Recommendations


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