Hold the breath and pull up the anus by contracting the sphincter; hold for about 10 seconds and inhale.
Release the anus.
Release this rhythmically about 10 to 30 times.
Benefits
This mudra is useful in evoking the spiritual forces dormant in the lower centers. Useful for pregnant women, and in curing urinary and anal incontinence. Asvini Mudra done in VIparitakarani posture is useful in treating piles and prolapse in uterus.