These are the practices that made the shatkarmas famous.
If you have seen a photograph of a yogi with a long strip of cloth emerging from his mouth, that is vastra dhauti. If you have read a startled account of yogic cleansing in a travel book, it was probably about this or its companion, danda dhauti, in which a soft stem is passed down the oesophagus.
They are also the two practices in the entire system that this website will not tell you how to do.
That is not squeamishness. Elsewhere in this category we have given full instructions for jala neti, trataka, kapalabhati, agnisara, uddiyana bandha, nauli and sutra neti, including for practices that make people uneasy. The line here is drawn on a specific basis: these are the practices where a mistake produces an outcome that surgery may not fix.
Where They Sit in the Tradition
Both belong to hrid dhauti — the cleansing of the throat and chest region — in the Gheranda Samhita's fourfold division of dhauti, alongside vaman dhauti.
There is a point about the Hatha Yoga Pradipika worth knowing. When Svatmarama lists his six cleansing actions and then describes dhauti, the practice he describes is vastra dhauti. It is the only dhauti in his text. The extensive catalogue of dhauti practices — the internal ones, the dental ones, the rectal ones — comes from Gheranda, two centuries later.
So when a source says "dhauti is one of the six shatkarmas," what the Pradipika means by that word is specifically the cloth practice.
Vastra Dhauti
Vastra means cloth.
The practice involves swallowing a long strip of wet cloth, a small section at a time, until much of it is in the stomach. It is left briefly, then drawn back out.
Hatha Yoga Pradipika 2.24 specifies a strip four fingers in width, gives a length, and — significantly — states that it should be swallowed by the method taught by the guru. The instruction that this cannot be self-taught is written into the verse itself.
The length is one of the places where translations diverge. The Sanskrit gives a figure in hastas, and depending on how that unit is rendered you arrive at anything between roughly three and seven metres. Modern practice generally uses cloth in the region of one and a half to four metres. Where a classical measurement is ambiguous enough to vary by a factor of two, it is worth noticing rather than quoting one figure confidently.
Verse 2.25 claims the practice removes cough, asthma, enlargement of the spleen, skin disease, and twenty kinds of kapha disorders.
Traditional practice specifies finely woven cotton, clean and new, with edges trimmed so nothing frays, and never synthetic material. Those requirements are not fussiness — a thread left behind in the digestive tract is a genuine problem.
Danda Dhauti
Danda means stick or staff.
A soft, flexible stem is passed down the oesophagus into the stomach and slowly withdrawn. The traditional material is the soft core of a banana plant stem; turmeric stalk and soft cane also appear in the sources. Modern practice sometimes substitutes a soft rubber tube.
The Gheranda Samhita describes it briefly under hrid dhauti and credits it with removing phlegm, bile and other impurities from the region of the stomach's opening.
Where vastra dhauti is described as cleaning the stomach, danda dhauti is aimed more specifically at the oesophagus and the junction where it meets the stomach.
The Comparison Worth Making
Modern medicine passes flexible instruments down the oesophagus routinely. It is called endoscopy, and it is performed hundreds of thousands of times a year without incident.
It is also performed by someone with years of specific training, using sterile equipment designed for the purpose, with the patient sedated, with the throat anaesthetised, and with the operator able to see where the instrument is going.
Vastra and danda dhauti do the same thing awake, without visualisation, using a piece of cloth or a plant stem, usually without medical screening, and often on the basis of written instructions.
That comparison is not an argument that the yogic practices are illegitimate. Practitioners in living lineages perform them regularly and safely, and have done for centuries. It is an argument about what conditions make it safe, and about how far most people attempting it from a video are from those conditions.
The Risks
Oesophageal perforation. The serious one. A tear in the oesophageal wall allows contents to leak into the chest cavity, causing a severe infection of the mediastinum. It is a surgical emergency with significant mortality even when treated promptly. This is the outcome that justifies the position taken in this article.
Oesophageal varices. Anyone with liver disease may have dilated, fragile veins in the oesophageal wall. Passing anything down against them risks a catastrophic bleed. People frequently do not know they have them.
Aspiration. Cloth, fluid or stomach contents entering the airway can cause choking or a serious pneumonia.
Retained material. Cloth that frays, tears, or cannot be withdrawn is a genuine obstruction risk and may require endoscopic or surgical removal.
Infection. Non-sterile material introduced directly into the digestive tract.
Gagging and vomiting, with the associated risks to the teeth and oesophagus covered in the article on vaman dhauti.
Who Must Not Attempt These
Rather than a list of conditions, the honest framing is a list of the conditions under which attempting them could be reasonable — because it is much shorter.
Practising these would require: a teacher who performs them regularly and has supervised others; in-person instruction over a period, not a demonstration; medical screening beforehand, particularly for liver disease, ulcers, hernia, reflux and varices; correct materials prepared properly; and no history of eating disorder or purging behaviour.
Absent any one of those, the answer is no.
Specific absolute contraindications include pregnancy, ulcers, hiatal hernia, reflux disease, any liver disease, heart disease, high blood pressure, recent surgery of the chest or abdomen, and any history of disordered eating.
Why These Practices Persist
Worth asking, since they are risky and largely superseded.
They are genuinely traditional. Vastra dhauti is the dhauti of the Hatha Yoga Pradipika. Dropping it entirely would remove one of the six as Svatmarama understood them.
Living lineages maintain them. There are teachers who practise these regularly, teach them carefully, and have done so for decades without incident. Their existence is why the practices survive, and the article's caution is not aimed at them.
They are visually dramatic. A photograph of vastra dhauti is arresting in a way that a photograph of someone scraping their tongue is not, and dramatic practices attract attention disproportionate to their importance.
They do something specific. Mechanical cleaning of the oesophagus and stomach lining is not achievable any other way in the yogic repertoire. Whether that is worth achieving is a separate question.
If a Teacher Offers to Teach You
Some questions worth asking, and the answers are informative.
Do they practise it themselves, currently and regularly? How many students have they taught it to? What screening do they do beforehand? What material do they use and how is it prepared? What would they do if the cloth could not be withdrawn?
A teacher with a real transmission of this practice will have straightforward answers. Someone who learned it from a book last year will not, and the difference is usually apparent within a minute of asking.
What Achieves the Same Aims
For most of what these practices are credited with, gentler options exist within the same tradition.
For kapha and upper-respiratory congestion — jala neti, the water-based kapalabhati variants, and steam.
For acidity and the sensation of heaviness — agnisara kriya, uddiyana bandha, and attention to eating patterns. Persistent reflux is a medical matter.
For general digestive sluggishness — nauli, adequate hydration, fibre and movement.
For the intent behind the whole category — a clear passage and a comfortable body before pranayama — jala neti and a stable seat deliver almost all of it.
Common Misunderstandings
1. That vastra dhauti is a beginner practice because it is one of the six. It is one of the six and it is advanced. Those are not in tension; the classical six were not arranged by difficulty.
2. That the classical texts endorse self-teaching. Verse 2.24 explicitly specifies the method taught by the teacher. The instruction against learning it alone is in the source.
3. That any cloth will do. Finely woven cotton, new, clean, trimmed so it cannot fray. Synthetic material and improvised fabric are how retained-material problems begin.
4. That these are necessary for a complete practice. The overwhelming majority of accomplished practitioners have never performed either, and are not lacking anything.
5. That risk means the practices are worthless. They are effective at what they do. The question is whether what they do justifies the conditions required to do it safely, and for most people the answer is no.
Conclusion
Vastra dhauti and danda dhauti are real practices with a genuine textual basis and living transmission. They are not folklore, and this article is not arguing that they should disappear.
What it is arguing is narrower. They belong to a category of practice that requires in-person transmission, screening, and correct materials — and that, done wrong, causes injuries that no amount of traditional authority will help with afterwards. The Pradipika itself says the method must come from a teacher, which is a striking thing for a text that elsewhere hands out instructions freely.
For a student building a practice, these are best understood rather than attempted. Knowing what they are, why they exist, and what they were for is part of understanding the shatkarma system. Performing them is a decision that should follow years of practice, a real teacher, and a medical conversation — in that order.
Everything the cleansing practices were actually aimed at is available through the gentler five.
Frequently Asked Questions
What is vastra dhauti?
Vastra dhauti is the yogic practice of swallowing a long strip of wet cloth, retaining it briefly, and drawing it back out to clean the oesophagus and stomach. It is the practice the Hatha Yoga Pradipika describes under the name dhauti.
What is danda dhauti?
Danda dhauti involves passing a soft flexible stem — traditionally the core of a banana plant stem — down the oesophagus and slowly withdrawing it. The Gheranda Samhita describes it under hrid dhauti.
Are vastra dhauti and danda dhauti safe?
Not without in-person instruction from an experienced teacher, correct materials, and medical screening. The serious risk is oesophageal perforation, which is a surgical emergency. This site does not provide instructions for either practice.
Why does this website give instructions for other shatkarmas but not these?
Because the failure modes differ. A mistake in jala neti or nauli produces discomfort. A mistake in these can produce an injury requiring emergency surgery.
Do I need to do these to practise the shatkarmas properly?
No. Most experienced practitioners have never performed either. Jala neti, trataka, kapalabhati, agnisara and uddiyana bandha deliver what the cleansing practices are aimed at.
What does the Hatha Yoga Pradipika say about dhauti?
Verses 2.24 and 2.25 describe vastra dhauti — a strip of cloth of specified width, swallowed by the method taught by the guru and then withdrawn — and credit it with relieving cough, asthma, spleen disorders and kapha conditions.