Incomplete Bowel Movements and the Reality of Retained Stool

Hello. Today, I'd like to discuss two concepts that many people find confusing.

Tenesmus (Sensation of Incomplete Evacuation) and Accumulated Stool: Two Confusing Concepts

The sensation of incomplete evacuation (잔변감), where you don't feel refreshed even after passing stool, and accumulated stool (숙변), the idea that old waste builds up in the intestines. While these two concepts may seem similar on the surface, they are actually entirely different.

Many people, after using the restroom, don't feel completely relieved and have a lingering sensation, leading them to wonder, "Is this due to accumulated stool?" However, a distinct pathological condition underlies this feeling. Today, let's specifically clarify the differences.

1. Tenesmus (Sensation of Incomplete Evacuation) – A Real Functional Disorder

Medically, the sensation of incomplete evacuation is called "Tenesmus." It is characterized by an uncomfortable feeling of incompleteness, as if something remains in the rectum or anus even after defecation, along with a persistent urge to defecate.

Key Causes:

• Hypersensitivity of rectal sensation
• Reduced or inefficient intestinal peristalsis
• Incomplete opening of the sphincter
• Co-occurrence with Irritable Bowel Syndrome (IBS)
• Psychological factors (anxiety, obsession, etc.)

All these factors combine to create a sensation as if the bowel hasn't been emptied, even when it actually is. This is a functional disorder with clear diagnostic potential and a symptom that can be treated.

2. Accumulated Stool (Sukbyeon) – A Symbolic Concept with No Clear Pathological Entity

The concept of "accumulated stool" (숙변) is closer to a folk belief that "old feces stick to the intestinal walls and produce toxins," and it is not recognized as an official medical term in modern medicine.

Misconceptions Related to Accumulated Stool:

• The form of "accumulated stool" is not observed during endoscopy.
• Descriptions of black waste adhering to the intestinal mucosa are exaggerated.
• The claim that removing "accumulated stool" cures all diseases is unscientific.

Occasionally, residual stool may be seen during an endoscopy if bowel preparation is incomplete, but this is merely a state of incomplete evacuation, not an accumulation of toxins.

3. Why is it Mistaken for Accumulated Stool?

Since tenesmus (sensation of incomplete evacuation) is genuinely an uncomfortable and frustrating sensation, many people interpret its cause as "stool remaining somewhere in the intestines."

Furthermore, after engaging in healthy eating, fasting, or detoxification therapies, people often feel their bowels become more comfortable and refreshed, leading to the misconception that "accumulated stool has been expelled."

However, in reality, this is the result of the intestines functionally recovering as irritating foods are reduced, peristalsis is restored, inflammation of the intestinal mucosa calms down, and the gut microbiome environment stabilizes. It's not that "accumulated stool has been expelled," but rather that "an oversensitive bowel has recovered."

4. What's More Important Than Accumulated Stool is Restoring Bowel Function

What we should focus on is mucosal health, normalization of bowel movements, microbial balance, and stabilization of the sensory nervous system. The fundamental solution lies not in detoxification or removing black waste, but in restoring the physiological function of the intestines themselves.

Tenesmus (sensation of incomplete evacuation) is a real functional disorder and a target for treatment. Accumulated stool (숙변) is a folk concept that should be understood as symbolic rather than a real entity. If you experience chronic tenesmus or discomfort during defecation, the correct approach is to accurately diagnose the cause and focus on restoring bowel function.

Thank you.

#Tenesmus #IncompleteEvacuation #AccumulatedStool