Misconceptions about colon cleansing methods such as drinking "intestinal detox" teas can lead to serious health issues, as seen in the case of Ms. Wan who developed colonic melanosis after regularly consuming laxative teas for two years. The concept of "intestinal toxins" or "fecal impaction" is not supported by medical evidence.

The digestion process takes around 24 hours, and the formation of feces is a natural process.

Using bowel cleansing products can harm the intestines, as the colon becomes dependent on the stimulation and may develop dark spots, leading to conditions such as colonic melanosis.

Drinking laxatives in the long term damages the intestinal nerves and muscles, making regular bowel movements difficult.

"Detox" and "colon cleansing" products are often misleading and should be approached with caution. While certain post-meal bowel movements are normal physiological responses, consistent and normal bowel habits are more important to observe.

Changes in bowel habits, presence of blood in stools, and changes in urinary frequency or urgency may indicate colon cancer and should be addressed by a medical professional.

Maintaining a healthy colon can be achieved by adopting a balanced diet, engaging in regular physical activity, maintaining a positive mindset, supplementing with probiotics, and correcting poor lifestyle habits to promote the growth of beneficial gut bacteria while inhibiting harmful bacteria.