White Film on Stool: Gastrointestinal Concerns Explained - Gastroenterology and Hepatology

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Bowel issue with stool covered in a white film?


Hello, Doctor.
My daily diet is somewhat unbalanced, but I do not consume excessively greasy or spicy foods.
I have been taking probiotics regularly and, due to my weight control needs, I also take chitosan before lunch and dinner.
Recently, the frequency of my bowel movements has increased from once a day to two or three times a day, and the stools have become softer, even unformed.
In the past few days, I have noticed that the beginning of my stool is covered with a white thin film.
Last year, during a colonoscopy, the doctor did not report any abnormalities, but this situation has been continuously troubling me.
I hope you can provide some clarification.

Zou Xiaoer, 30~39 year old female. Ask Date: 2017/09/15

Dr. Chen Shidian reply Gastroenterology and Hepatology


Hello, sir.
It seems to be an abnormality in gastrointestinal motility.
If you are concerned, you may consider testing for occult blood in your stool.
Changhua Hospital cares about your health.
Chen Shidian.

Reply Date: 2017/09/15

More Info


The presence of a white film on your stool can indeed be concerning, especially when accompanied by changes in bowel habits and stool consistency. Based on the information provided, it seems that you have been experiencing an increase in the frequency of your bowel movements, with stools that are softer and occasionally unformed. The appearance of a white film or coating on the stool can be attributed to several factors, and it is essential to consider both dietary influences and potential gastrointestinal issues.

Firstly, the white film on your stool may be related to undigested food particles, mucus, or even a reaction to the probiotics and chitosan you are taking. Probiotics are generally beneficial for gut health, but they can sometimes lead to changes in bowel habits, including increased frequency and softer stools, as your gut flora adjusts. Chitosan, a fiber derived from crustacean shells, is often used for weight management and can also affect stool consistency, potentially leading to softer stools as well.

The increase in bowel movements from once daily to two or three times a day, along with the change in stool consistency, may indicate a functional gastrointestinal issue, such as irritable bowel syndrome (IBS) or a mild case of gastroenteritis. IBS is characterized by a combination of symptoms, including changes in bowel habits, abdominal pain, and bloating, without any identifiable structural abnormalities. Given that you have not experienced any significant abdominal pain or other alarming symptoms, it is plausible that your symptoms are functional rather than indicative of a more severe underlying condition.

However, the presence of a white film on the stool should not be overlooked. It is advisable to monitor your symptoms closely. If the white film persists, or if you experience additional symptoms such as abdominal pain, weight loss, or changes in appetite, further evaluation may be warranted. A stool test to check for infections, parasites, or other abnormalities could provide valuable insights. Additionally, if you have a family history of gastrointestinal diseases, it is prudent to remain vigilant and discuss any concerns with your healthcare provider.

In terms of dietary considerations, it may be beneficial to evaluate your current intake of fiber, fats, and other nutrients. A diet that is too high in certain fibers or low in fats can sometimes lead to changes in stool consistency. Ensuring a balanced diet with adequate hydration can help maintain regular bowel function.

Lastly, while your previous colonoscopy did not reveal any abnormalities, it is essential to continue regular screenings as recommended by your healthcare provider, especially considering your concerns and family history. If your symptoms persist or worsen, seeking a follow-up appointment with a gastroenterologist would be a prudent step to ensure that any potential issues are addressed promptly.

In summary, while the presence of a white film on your stool can be concerning, it is often related to dietary factors or functional gastrointestinal issues. Monitoring your symptoms, maintaining a balanced diet, and consulting with your healthcare provider for further evaluation if necessary are key steps in managing your gastrointestinal health.

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