Purisha Vaha Srotas
The channel that carries and eliminates purisha (feces), one of the three mala srotamsi for elimination.
Purisha Vaha Srotas: The Fecal Channel
Mula (root): cecum and rectum. Marga (passage): ascending colon, transverse colon, descending colon, sigmoid colon, and rectum. Mukha (opening): the anus. The appendix, connected to the cecum, secretes enzymes necessary for the digestion of legumes and grains — those without an appendix should go easy on beans, as gases form more easily.
Apana vayu governs the activities of purisha vaha srotas, which accumulates the end products of digestion — unessential foodstuffs called kitta in Sanskrit. When the rectum is full of feces, apana vayu sends a message to the brain, which then signals the autonomic nervous system to initiate mass peristalsis from the ileocecal valve, creating pressure to push out the feces.
Ideally, one should have a bowel movement before the sun rises. Constipation creates ama (toxins) and affects the mind, leading to negative thinking. The primary causes of constipation include lack of exercise, irregular diet habits, eating at wrong times, and insufficient roughage. Eating whole grains, sprouts, and greens helps the colon to move properly.
Source: Textbook of Ayurveda: Fundamental Principles, Chapter Seven: Srotamsi, The Bodily Channels and Systems
Medical Disclaimer: The information on this page is for educational purposes only and is not intended as medical advice. Ayurvedic treatments should be pursued under the guidance of a qualified practitioner (BAMS/MD Ayurveda). Always consult your healthcare provider before starting any new treatment. Content is sourced from classical Ayurvedic texts and may not reflect the latest medical research.