Anal Contraction Issues and Changes in Stool Color - Gastroenterology and Hepatology

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Anal contraction


Hello Doctor,
1) Recently, when I feel a slight urge to have a bowel movement and try to squat in the restroom, I experience an involuntary contraction of the anus when I exert pressure, which makes me feel like the stool is about to come out.
However, when the anus contracts, the stool gets pushed back in.
Could you explain why this is happening? I am currently taking Betmiga for urology and some anti-anxiety medications; could these be affecting this issue?
2) Recently, I have noticed that the color of my stool appears somewhat orange.
What could be the reason for this?

Niming, 20~29 year old female. Ask Date: 2020/06/27

Dr. Chen Shidian reply Gastroenterology and Hepatology


It should be fine; just relax a bit more and continue to observe.

Reply Date: 2020/06/27

More Info


Understanding anal contraction issues and changes in stool color can be complex and may involve various physiological and psychological factors. Let's break down your questions systematically.

1. Involuntary Anal Contraction: The involuntary contraction of the anal sphincter during attempts to defecate can be attributed to several factors. This phenomenon is often referred to as "anal sphincter spasm." It can occur due to anxiety, stress, or even the anticipation of pain during bowel movements. The medications you mentioned, such as Betmiga (used for overactive bladder) and certain anti-anxiety medications, can also influence muscle tone and nerve responses in the pelvic region.
Betmiga works by relaxing the bladder muscles, but it may have side effects that could indirectly affect the anal sphincter. Anti-anxiety medications can alter muscle tension and may lead to increased sensitivity or altered reflexes in the pelvic area. If you are experiencing significant discomfort or if this issue persists, it is advisable to consult with a healthcare professional who can evaluate your symptoms in the context of your medication regimen and overall health.

2. Changes in Stool Color: The change in stool color to an orange hue can be caused by several factors. Dietary choices are often the most common reason. Foods rich in beta-carotene, such as carrots, sweet potatoes, and certain leafy greens, can lead to orange-colored stools. Additionally, food coloring in processed foods can also affect stool color.

However, if the change in color is not related to dietary intake, it could indicate a more serious issue. For instance, orange stools can sometimes suggest a lack of bile in the stool, which may occur due to liver or gallbladder issues. If you notice other symptoms such as abdominal pain, changes in appetite, or jaundice (yellowing of the skin or eyes), it is crucial to seek medical attention promptly.

3. Psychological Factors: Anxiety and stress can significantly impact gastrointestinal function. The gut-brain connection is well-documented, and stress can lead to various gastrointestinal symptoms, including changes in bowel habits and stool consistency. If you are experiencing anxiety, it may be beneficial to explore stress management techniques or consult with a mental health professional.

4. Recommendations:
- Monitor Symptoms: Keep a diary of your bowel movements, noting any changes in color, consistency, and frequency. Also, document any associated symptoms such as pain, discomfort, or changes in appetite.

- Dietary Review: Consider your recent dietary intake. If you have consumed foods high in beta-carotene or artificial coloring, this may explain the color change.

- Medication Review: Discuss your current medications with your healthcare provider. They can help determine if any of your medications might be contributing to your symptoms and suggest alternatives if necessary.

- Consult a Specialist: If symptoms persist or worsen, consider consulting a gastroenterologist. They can perform necessary evaluations, including stool tests or imaging studies, to rule out any underlying conditions.

In conclusion, while involuntary anal contractions and changes in stool color can be concerning, they are often manageable with appropriate medical guidance. It is essential to communicate openly with your healthcare provider about your symptoms and any medications you are taking to ensure a comprehensive approach to your health.

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