Lose (earth) hole; source point.

[Origin]

Tai means grand. foot lesser yin kidney meridian (KI) meridian qi comes out of the sole of the foot, passes through Rangu (KI2), and drains into a big stream, with corresponding arteries, hence the name.

[Location]

Taixi acupoint cross section
(quoted from "Yan Zhenguo acupoint anatomy")

Taixi (KI3) acupoint
(quoted from "Meridians and Acupoints")

The medial part of the foot, behind the medial malleolus, Neihuaijian (EX-LE8 ) and the Achilles tendon.

• Lingshu‧Benshu: "Behind the medial malleolus, above the calcaneus, the person who sinks is in the middle."
• Yixue Rumen: "Behind the medial malleolus Five points";
• Xunjing Kaoxue Bian: "The ankle bone is pointed and flat."

[Anatomy]

• Muscles: anteriorly: tibialis posterior tendon and flexor digitorum longus tendon, posteriorly: Achilles tendon and metatarsus tendon; deeply: flexor pollicis longus.
• Nerve: Medial cutaneous nerve of the calf, where the tibial nerve passes.
• Vessels: posterior tibial artery and vein.

[Manipulation]

Perpendicular insertion 0.5~1 inch. moxa cone moxibustion 3 to 5 times, moxa stick warm moxibustion for 10 to 15 minutes.

[Efficacy]

Benefit the kidneys and reduce fire.

• Classical: Silent sleepiness, yellowing, lower abdominal heat, abdominal distension and fullness, heart pain, wheezing, vomiting, cough, chest and hypochondrium fullness, swelling and pain in the throat, bloody saliva, heat in the mouth, salivation Such as glue, consumptive thirst, cholera, cold reversal, foot heat, toothache, seminal emission, enuresis, residual urine, menstrual irregularities, leukorrhea, vaginal internal dampness, itching, sores, acute mastitis, epistaxis, swollen feet, Plantar pain.
• Modern: Chronic pharyngitis, vertigo, nephritis, urinary tract infection, insomnia, neurasthenia, kidney deficiency toothache, central retinal membrane choroiditis, plantar pain.

[Recipe]

• Dry throat, hot mouth and saliva: Shaoze (SI1), Taixi (KI3).
• Pharyngeal swelling: Zhongzhu (TE3), Taixi (KI3).
• Bleeding from bleeding: Duiduan (GV27), Naokong (GB19), Fengmen (BL12), Taixi (KI3) , stable white.
• Swelling and redness of legs and feet: Taixi (KI3), Kunlun (BL60), Shenmai (BL62).
• vertigo: Wangu (GB12), Taixi (KI3), Taichong (LR3).
• kidney toothache deficiency: Xiaguan (ST7), Jiache (ST6), Taixi (KI3).
• insomnia: Shenmen (HT7), Sanyinjiao (SP6), Taixi (KI3).