Chronic Constipation: The Importance of Hydration and Screening - Internal Medicine

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Regarding the bowel movement issue I inquired about last time..?


Hello Doctor: Thank you for your response.
Well...
perhaps it's because I don't like drinking water, which has led to my constipation for over 8 years.
I had hemorrhoids when I was in the third grade, and I received treatment for it, which resolved the issue.
Since then, I have forced myself to drink 1000 milliliters of water every day, but because I really dislike it (whenever I drink water, I have to go to the bathroom about half an hour later, which is annoying), I often forget or drink less than 500 c.c.
As a result, there are times when I go 3-5 days without drinking water.
I know this is not good, but I just can't seem to change it.
I've heard that one should drink about 2000 milliliters of water daily, but I barely manage to consume a quarter of that.
I can understand why I experience blood in my stool, have the urge to defecate but cannot, have dark stools, and when I do go, it's in small balls or related to hemorrhoids, etc.
However, I don't understand why I've been experiencing diarrhea recently.
You mentioned that if constipation lasts more than 5 years, a colonoscopy is necessary.
Why is that? Can't a barium enema be sufficient? I think my issues are just due to insufficient water intake, so I probably don't need to be examined...
I know...
it's quite embarrassing for a 17-year-old girl to ask such questions, but I still hope you can reply to me.
Thank you.

Xiao Wen, 10~19 year old female. Ask Date: 2005/07/19

Dr. Cai Zonglong reply Internal Medicine


Hello, the primary function of the colon is to absorb water.
If you drink insufficient water, the colon will absorb more water from the stool, resulting in harder and darker stools, which can make bowel movements more difficult.
Additionally, when the stool is so dirty and the colon continues to absorb water while being in contact with the stool for many days, constipation becomes a risk factor for colorectal cancer.
The youngest patient I encountered was a 30-year-old female teacher, who unfortunately was diagnosed with colorectal cancer that had already metastasized to the liver when treated at National Taiwan University Hospital.
Therefore, I recommend that you undergo a colonoscopy.
Sincerely, Dr.
Tsai Tsung-Long, Internal Medicine.

Reply Date: 2005/07/19

More Info


Chronic constipation is a common gastrointestinal issue that can significantly impact a person's quality of life. It is often characterized by infrequent bowel movements, difficulty passing stools, and a sense of incomplete evacuation. In your case, it appears that inadequate hydration is a significant contributing factor to your constipation. The importance of hydration cannot be overstated, as water plays a crucial role in softening stool and promoting regular bowel movements.

The general recommendation for fluid intake is about 2 liters (or approximately 64 ounces) per day for adults, although individual needs can vary based on factors such as activity level, climate, and overall health. For someone experiencing chronic constipation, increasing water intake is essential. Dehydration can lead to hard, dry stools that are difficult to pass, exacerbating the problem. It’s understandable that you find drinking water inconvenient, especially if it leads to frequent trips to the bathroom. However, finding a balance is crucial. You might consider spreading your water intake throughout the day, rather than consuming a large amount at once, to minimize the urgency to urinate.

Your history of hemorrhoids and the symptoms you describe, such as blood in your stool and difficulty passing stools, indicate that your constipation has been persistent and potentially severe. These symptoms warrant further investigation, especially since you have been experiencing them for over eight years. While it may seem that your issues stem solely from dehydration, chronic constipation can sometimes be a sign of underlying conditions that require medical attention.

Regarding your question about the necessity of a colonoscopy versus a barium enema, a colonoscopy is often preferred for several reasons. It allows for direct visualization of the colon and rectum, enabling the physician to identify any abnormalities such as polyps, tumors, or signs of inflammatory bowel disease. Additionally, if any suspicious lesions are found, they can often be biopsied during the procedure. A barium enema, while useful, is less comprehensive and may not provide the same level of detail as a colonoscopy. Given your age and the duration of your symptoms, a colonoscopy is a prudent step to rule out any serious underlying conditions.

It’s also worth noting that experiencing diarrhea alongside chronic constipation can be perplexing but is not uncommon. This could indicate a condition known as "alternating constipation and diarrhea," which can occur in some individuals with irritable bowel syndrome (IBS) or other gastrointestinal disorders. It’s essential to discuss these symptoms with your healthcare provider, as they can help determine the underlying cause and appropriate treatment.

In summary, increasing your water intake is vital for managing your constipation, but given the duration and severity of your symptoms, a thorough evaluation is necessary. A colonoscopy is a valuable tool for assessing your gastrointestinal health and should not be overlooked. It’s important to prioritize your health and seek the appropriate medical care, even if discussing these issues feels uncomfortable. Remember, healthcare professionals are there to help you, and your concerns are valid, regardless of your age.

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