Alternating Constipation and Diarrhea: Should You Worry About Colon Cancer?

Q: Alternating Constipation and Diarrhea: Should You Worry About Colon Cancer?

Hello Mr. <br>Su： It is likely that you have irregular bowel motility, but it is still recommended to visit a gastroenterologist for examination and treatment, as well as to adjust your diet and lifestyle. <br>Changhua Hospital cares about your health. <br>Chen Shidian

Alternating constipation and diarrhea?

Hello, a month ago I was having regular bowel movements, able to pass a large amount of stool within five minutes.
However, after my trip to Japan on June 30, I experienced mild diarrhea.
After taking loperamide, I ended up with constipation.
When I returned to my country on July 13, I had diarrhea again and took loperamide once more.
I thought this issue would improve after returning home (last year, I experienced similar constipation after a trip to Japan, but it returned to normal afterward).
However, after returning home and indulging in rich meals, I experienced constipation again, followed by a week of diarrhea, then back to constipation, and now I'm constipated again.
The frequency of passing gas has increased, and I feel a sense of urgency and heaviness after meals.
I also experience abdominal bloating in the morning, and the shape of my stool varies from thick to thin, but there is no blood in the stool.
My weight has actually increased rather than decreased, and I do not have abdominal pain.
My grandmother has colon cancer, and I would like to know if these symptoms indicate a high likelihood of colon cancer.
Should I go to the hospital for an examination, or should I observe my condition at home for a while?

Su, 20~29 year old female. Ask Date: 2014/08/04

Dr. Chen Shidian reply Gastroenterology and Hepatology

Hello Mr.
Su: It is likely that you have irregular bowel motility, but it is still recommended to visit a gastroenterologist for examination and treatment, as well as to adjust your diet and lifestyle.
Changhua Hospital cares about your health.
Chen Shidian

Reply Date: 2014/08/04

More Info

When it comes to alternating constipation and diarrhea, it’s understandable to be concerned, especially with a family history of colon cancer. While your symptoms may be distressing, they do not automatically indicate the presence of colon cancer. However, it is essential to approach this situation with caution and awareness of the potential underlying issues.

Firstly, the symptoms you describe—alternating between constipation and diarrhea, increased flatulence, and changes in stool consistency—can be attributed to various factors. These may include dietary changes, stress, gastrointestinal infections, or conditions such as irritable bowel syndrome (IBS). IBS is a common functional gastrointestinal disorder characterized by symptoms like abdominal pain, bloating, and altered bowel habits, which can manifest as alternating constipation and diarrhea.
Your recent travel and dietary indulgences could have contributed to these fluctuations in bowel habits. Travel can disrupt normal eating patterns and introduce new foods that your digestive system may not be accustomed to, leading to temporary gastrointestinal disturbances. Additionally, the use of antidiarrheal medications like loperamide (the active ingredient in your medication) can sometimes lead to constipation, especially if taken frequently.

While the absence of blood in your stool and the lack of significant weight loss are reassuring signs, it is still important to consider your family history. A family history of colon cancer, particularly in first-degree relatives, can increase your risk. Therefore, it is prudent to monitor your symptoms closely. If they persist for more than a few weeks, worsen, or if you develop additional symptoms such as significant abdominal pain, changes in appetite, or unexplained weight loss, it would be wise to consult a healthcare professional.

In terms of screening, the general recommendation is that individuals at average risk for colon cancer begin screening at age 45. However, if you have a family history of colon cancer, your healthcare provider may recommend earlier screening, such as a colonoscopy. This procedure allows for direct visualization of the colon and can help identify any abnormalities, including polyps or tumors.

In summary, while your symptoms are concerning, they are not definitive indicators of colon cancer. It is essential to maintain a healthy diet, manage stress, and stay hydrated. If your symptoms do not improve or if you have any doubts, seeking medical advice is the best course of action. A healthcare provider can perform the necessary evaluations and determine if further investigation is warranted. Remember, early detection is key in managing any potential health issues, especially with a family history of colon cancer.

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