Sarvangasana (Shoulder Stand)

Sarvangasana means the pose of all the limbs, from sarva all and anga limb, and it is traditionally called the queen of the asanas alongside the headstand as king. It is the more accessible of the two classical inversions, and it is also the one most often practised badly, because it looks simple enough to try alone.

The thing that decides whether this pose is reasonable or reckless is a stack of folded blankets. Practised flat on the floor, the neck is pressed into its full range of forward bending while the whole weight of the body sits on top of it. Practised with the shoulders raised six to eight centimetres and the head lower on the floor, the neck keeps its natural curve and a hollow to rest in, and the load moves onto the shoulders and upper arms where it belongs.

That is not an optional refinement. In my hall, if there are no blankets, there is no shoulder stand, and we do legs up the wall instead. Neck injuries are specifically attributed to this pose and to the headstand in the published review of yoga adverse events, and the blanket setup is the main thing that separates a careful practice from that statistic.

Put your chin on your chest and notice the stretch at the back of the neck. Now imagine holding that position with your entire body weight stacked above it for two minutes. That is an unsupported shoulder stand.

The cervical spine has seven small vertebrae designed to carry a head weighing four or five kilograms and to move freely in every direction. In this pose they are asked to hold a compressed, fully flexed position under load, and to do it while you concentrate on something else.

Three things protect it:

1. The blankets. Shoulders on, head off, straight edge just below the shoulder tops. The neck now has somewhere to be.
2. The hands. High up the back, fingers to the ceiling, actively lifting the chest. The arms carry the body.
3. The stillness of the head. Never turn it while you are up. Rotating a loaded cervical spine is the single riskiest thing you can do in this pose, and it is usually done thoughtlessly, to look at somebody.

If any of the three is missing, do legs up the wall instead. Nobody has ever regretted that trade.

This pose is famous in India as the thyroid pose, and the claim needs handling honestly rather than repeating or dismissing.

What is true: yoga programmes that include Sarvangasana and Halasana have been studied in people with hypothyroidism, and a 2024 systematic review of yoga therapy for hypothyroidism reported reductions in TSH and in levothyroxine dose over six months.

What is also true, and usually left out: that review included only three randomised trials, judged them at moderate risk of bias, found the studies too heterogeneous to combine statistically, and stated explicitly that the mechanism is unclear. The poses were never tested individually, so nothing in it shows that the shoulder stand specifically does anything to a thyroid gland.

So the fair statement is that there is preliminary and low certainty evidence that yoga practice as a whole may help people with hypothyroidism, and no established evidence that this particular pose acts on the gland. Nobody should change their thyroid medication because of a yoga practice. If you have a thyroid condition, keep taking what you are prescribed, keep your blood tests, and treat the practice as something added alongside. There is more on this on the yoga for thyroid page.

The traditional instruction is that women should not invert during menstruation, and it is repeated in almost every class in India, including mine. It deserves an honest account rather than either confident version.

The reasoning behind the prohibition is that inverting might encourage menstrual flow backwards into the pelvis, and that this could contribute to endometriosis. No study has ever tested posture against that. And the underlying phenomenon is itself shaky: a 2024 systematic review asking whether retrograde menstruation is even a universal, recurrent event found reported rates across studies ranging from nine percent to one hundred percent, with extreme heterogeneity, and it makes no mention of posture or gravity anywhere.

On the other side, there is no evidence that inverting during a period is beneficial either. Nothing has been tested.

So: not proven harmful, not proven harmless, not studied. What I do is offer legs up the wall or a restorative alternative on those days, and I never ask anybody why they have chosen it. Many students find inversions physically uncomfortable during a period and are glad of the option. Others carry on and are fine. What I will not do is tell you the question has been settled in either direction, because it has not.

This is not a pose to attempt fully on the first day, and the entry and exit are where people get hurt.

• Weeks one to four: legs up the wall only, five minutes daily. Learn what a mild inversion feels like, and find out whether your head, eyes or ears object to being low.
• Weeks five to eight: set up the blankets and roll up only to the half shoulder stand, hips over the shoulders, legs at forty five degrees, hands firmly on the back. Thirty seconds, twice.
• Weeks nine to twelve: walk the hands higher, lift the chest more, and take the legs towards vertical. Thirty to sixty seconds.
• After three months: up to two minutes, if the neck has been silent throughout.

Roll down slowly every time, one vertebra at a time with the knees bent, then lie flat with the knees bent for a full minute. Follow it with a gentle chest opening counter movement and then Savasana. The counter pose matters here: after two minutes of a flexed neck, a few breaths lying over a folded blanket with the chest open is what returns the neck to neutral.

I would rather write this plainly than bury it.

If you have any neck history at all, do not do this pose. Cervical spondylosis is extremely common in adults over forty who work at desks, and many people have it without a diagnosis. If your neck aches at the end of a working day, if it clicks, if turning it to reverse the car is uncomfortable, that is your answer.

If you have high blood pressure, glaucoma, a retinal problem, osteoporosis, or you are pregnant, the answer is also no, for the reasons in the contraindications above.

What to do instead is not a consolation. Legs up the wall gives you the reversal of gravity, the lightness in the legs and the quiet that people come to this pose for, with no load on the neck, no risk in the entry or the exit, and it can be held for ten minutes rather than one. Add a folded blanket under the hips and a blanket over you, and it becomes one of the best restorative poses there is. Pair it with Yoga Nidra and you have a practice most inverted students would envy.

The last column of this table is the one to read. The shoulderstand is in the avoid list on eight of the nine condition pages here.

Follow every hold with the fish, held for half as long. That is not a tradition, it is the reason people do not walk out with a stiff neck.

The shoulderstand is called the queen of asanas and is the pose I most often ask people to stop doing. Eight of the nine condition pages on this site put it in the avoid list.

• Yoga for neck and shoulder pain and yoga for beginners over 40 rule it out on the neck load, which is the whole of the body weight through a sharply flexed cervical spine.
• Yoga for back pain rules it out because getting into it and out of it is where backs are hurt, not the position itself.
• Yoga for PCOS, yoga for weight loss, yoga for diabetes and yoga for anxiety all leave it out because the claim attached to it is larger than the evidence and the risk is real.

The substitute I give is the bridge, Setu Bandhasana, which gives some of the chest opening at a fraction of the neck load. If you do practise the shoulderstand, Matsyasana follows it, held for half as long, without exception.