LR1 (Dà Dūn, “Dà Dūn”) is the Jing-Well Point point of the Liver Channel of Foot Jueyin Meridian. It is located on the dorsal aspect of the great toe, at the junction of lines drawn along the lateral border of the nail and the base of the nail, in the tuft of hair approximately 0.1 cun from the corner of the nail. It revives consciousness, regulates urination and the genitals, alleviates pain, calms the spirit, and stops abnormal uterine bleeding.
On the dorsal aspect of the great toe, at the junction of lines drawn along the lateral border of the nail and the base of the nail, in the tuft of hair approximately 0.1 cun from the corner of the nail.
Subcutaneous insertion 0.1-0.2 cun, or prick to bleed.
Revives consciousness, regulates urination and the genitals, alleviates pain, calms the spirit, and stops abnormal uterine bleeding..
Corpse-like collapse (syncope) where the person is unconscious but the pulse is normal, sudden heart pain with sweating, hernia, uterine prolapse, uterine bleeding, urinary incontinence, difficult urination, five types of urinary strangury (lin syndrome), swelling and pain of the genitals, pain in the lower abdomen, mania and epilepsy in adults and children, fright epilepsy, mania with desire to run, madness with seeing ghosts, preference for sleeping, contracted sinews, testicular retraction, pain around the navel, abdominal distention..
As the Jing-Well point of the Liver channel, Dadun is a critical point for emergencies, particularly for reviving consciousness from collapse or syncope, often by pricking to bleed. Its strong action on the Lower Jiao makes it a primary point for genital and urinary disorders, such as hernia, prolapse, and urinary incontinence. It is also frequently used in combinations to stop excessive uterine bleeding and to calm the spirit in cases of mania or epilepsy.
LR1 is one of 14 points on the Liver Channel of Foot Jueyin Meridian. Nearby points:
LR1 (Dà Dūn) is located on the dorsal aspect of the great toe, at the junction of lines drawn along the lateral border of the nail and the base of the nail, in the tuft of hair approximately 0.1 cun from the corner of the nail.
LR1 revives consciousness, regulates urination and the genitals, alleviates pain, calms the spirit, and stops abnormal uterine bleeding. Common clinical indications include corpse-like collapse (syncope) where the person is unconscious but the pulse is normal, sudden heart pain with sweating, hernia, uterine prolapse, uterine bleeding, urinary incontinence, difficult urination, five types of urinary strangury (lin syndrome), swelling and pain of the genitals, pain in the lower abdomen, mania and epilepsy in adults and children, fright epilepsy, mania with desire to run, madness with seeing ghosts, preference for sleeping, contracted sinews, testicular retraction, pain around the navel, abdominal distention.
Subcutaneous insertion 0.1-0.2 cun, or prick to bleed. Caution: The Qian Jin Yao Fang states that during the first month of pregnancy, one must not needle or moxa points on the Liver channel, including Dadun.
LR1 is a point on the Liver Channel of Foot Jueyin Meridian (Zú Juéyīn Gānjīng).