LOCATION
9 cun below Dubi (ST 35), 1 finger width lateral to the anterior crest of tibia.
Features
Lower He/Sea point of the SL Meridian.
Body Inches (cun)
Each person has his/her own personal body inches.
One cun is equal to the width of the Knuckle of the thumb.
Nerves, vascular
Branches of superficial peroneal nerve, deep peroneal nerve; and anterior tibial artery and vein.
Indication
Acute chronic enteritis，acute chronic hepatitis，pancreatitis；epilepsy，psychiatry，intercostal nerve pain；paralysis of the lower limbs，lower limb paralysisspasm。Disorders of the Small Intestine organ – abdominal pain, diarrhea, dysentary. SI channel problems – breast issues, mastitis, pain/swelling/numbness along channel. Local point for lower leg issues – pain, numbness, motor control, atrophy.
Combinations
Hemntodiarrhoea：ST 39 & LI 08 & KI 21 & SP 03.
Lower limbs numbness：ST 39 & GB 34 & ST 41.
Fullness and discomfort in chest and Hypochondrium：ST 39 & LI 08 & GB 40 & GB 43 & BL 23.
穴位
在小腿前外側，當犢鼻下9寸，距脛骨前緣一橫指。
特點
小腸之下合穴。
同身寸
針灸取穴比量法。出自《千金要方》。
是指以患者本人體表的某些部位折定分寸，
作为量取穴位的長度單位。
穴區神經血管
布有腓淺神經分支、腓深神經；及脛前動脈、靜脈。
適應症
急慢性腸炎，急慢性肝炎，胰腺炎；癲癇，精神病，肋間神經痛；下肢癱瘓，下肢麻痺痙攣。
穴位配伍療法
洩痢膿血：1.下巨虛 2.下廉 3.幽門 4.太白
下肢麻木：1.下巨虛 2.陽陵泉 3.解溪
胸脅滿引腹：1.下巨虛 2.下廉 3.丘墟 4.俠溪 5.腎俞