Constipation and diarrhea are opposite digestive symptoms. One involves difficulty passing stool, while the other involves frequent, loose stools. So how could the same treatment potentially help with both?
The answer lies partly in the nervous system and its role in regulating digestive function.
1. Two Opposite Symptoms, Shared Regulatory Mechanisms
Although constipation and diarrhea may seem like opposite digestive problems, both can involve changes in intestinal motility, visceral sensitivity, and communication between the brain and digestive tract. Constipation is commonly associated with slow intestinal transit or difficulty passing stool, while diarrhea may result from accelerated transit, increased intestinal secretion, or reduced fluid absorption. In mixed irritable bowel syndrome (IBS-M), these disturbances can lead to alternating episodes of constipation and diarrhea.
Acupuncture for Constipation
Constipation is not always a matter of infrequent bowel movements. It can also involve hard stools, excessive straining, incomplete evacuation, or difficulty passing stool despite the urge to do so. These symptoms may arise from delayed intestinal transit, impaired coordination of the pelvic floor muscles, or disturbances in the nervous system pathways responsible for bowel function. Research suggests that acupuncture may influence several mechanisms involved in intestinal movement:
1. Regulation of autonomic nervous system activity
Acupuncture stimulates sensory nerves that communicate with the central nervous system. Experimental research suggests that this stimulation can influence autonomic pathways involved in gastrointestinal motility, potentially supporting intestinal contractions and bowel movement.
2. Modulation of intestinal neurotransmitters
The enteric nervous system uses chemical messengers, including serotonin (5-HT) and substance P, to regulate intestinal activity. Acupuncture may influence these signalling pathways, although the precise effects and their clinical significance remain under investigation.
3. Influence on intestinal pacemaker cells
Interstitial cells of Cajal are specialised cells that help coordinate rhythmic contractions of intestinal smooth muscle. Experimental studies suggest that electroacupuncture may influence their activity or expression, potentially contributing to improved intestinal motility.
Acupuncture for Diarrhea
Chronic diarrhea can occur when intestinal transit is altered, leading to frequent loose or watery stools. In functional diarrhea and diarrhea-predominant irritable bowel syndrome (IBS-D), changes in intestinal motility and gut–brain communication may contribute to digestive symptoms. Unlike medications that directly inhibit intestinal movement, acupuncture is being investigated for its potential to modulate the nervous system pathways responsible for gastrointestinal regulation.
1. Modulation of intestinal motility
Experimental studies suggest that acupuncture may influence intestinal contractions through neural and hormonal pathways. Some animal studies have observed different effects on motility depending on the physiological condition.
2. Regulation of the gut–brain axis
Acupuncture may influence communication between the central, autonomic, and enteric nervous systems, which collectively participate in the regulation of digestive function.
3. Regulation of hormonal signalling
Acupuncture may affect neural and humoral pathways involved in controlling gastrointestinal movement.
6. Our Approach at Acutherapy Center
At Acutherapy Center, our approach focuses on the neurological mechanisms involved in digestive function, particularly the interaction between the autonomic nervous system, intestinal motility, and the gut–brain axis.
Rather than treating constipation and diarrhea as the same digestive problem, we consider their different underlying mechanisms.
For Constipation
Our neuro-acupuncture approach focuses on stimulating neural pathways involved in intestinal motility, with the aim of supporting more coordinated bowel movements and reducing associated discomfort, such as bloating and abdominal tension.
We also consider factors that may contribute to constipation, including stress, sleep disturbances, and autonomic nervous system regulation.
For Diarrhea
For functional diarrhea and diarrhea-predominant irritable bowel syndrome (IBS-D), our approach focuses on modulating the neural pathways involved in intestinal activity and gut–brain communication.
The aim is to support more stable bowel function while addressing associated symptoms such as abdominal discomfort, urgency, and stress-related digestive disturbances.
A Personalised Approach to Digestive Health
Each patient's digestive symptoms, medical history, and contributing factors are assessed before developing an individualised neuro-acupuncture plan.
Our goal is not simply to accelerate or slow intestinal movement, but to support the nervous system's role in regulating digestive function.
References
Cao, H., Wang, Y., Su, J., Zhao, H., Han, M., & Liu, J. P. (2023). Acupuncture for chronic constipation. The Cochrane Database of Systematic Reviews, 2023(4), CD004117. https://doi.org/10.1002/14651858.CD004117.pub4
Qin, Z., Li, B., Wu, J., Tian, J., Xie, S., Mao, Z., Zhou, J., Kim, T. H., & Liu, Z. (2017). Acupuncture for chronic diarrhea in adults: Protocol for a systematic review. Medicine, 96(4), e5952. https://doi.org/10.1097/MD.0000000000005952
Neuro-acupuncture is offered as a complementary intervention following appropriate medical evaluation. Treatment responses vary, and improvement cannot be guaranteed.
