LOCATION
In the region of the sacrum, medial and inferior to the posterior-superior iliac spine, in the 2nd posterior sacral foramen.
Features
-/-
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
The posterior branch of the second sacral nerve and the posterior branch of the lateral sacral artery and vein.
Indication
irregular menstruation，hysteroptosis，uterus meningitis，pelvic inflammatory disease，oophoritis；lumbago，lumbosacral painarthritis，knee arthritis；sciatica，paralysis of the lower limbs，pediatric paralysis sequelae；vulvar eczema，hemorrhoids， testitis，constipation，urinary retention.
The “Eight Liao” points are useful for local low back a/or sacrum problems and most genital and urinary related disorders.
Combinations
Irregular menstruation，dysmenorrhea，leukorrhagia：BL 32 & CV 04 & SP 06.
Dysmenorrhea ，infertility：BL 32 & SP 05 & KI 01.
Hemorrhoids，anal fissure：BL 32 & GV 01 & BL 57.
穴位
在骶部，當髂後上棘內下方，適對第二骶後孔處。
特點
-/-
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
第二骶神經後支和骶外側動、靜脈後支。
適應症
月經不調，子宮脫垂，子宮內膜炎，盆腔炎，卵巢炎；腰痛，腰骶關節炎，膝關節炎；坐骨神經痛，下肢癱瘓，小兒麻痺後遺症；外陰濕疹，痔瘡，睾丸炎，便秘，尿瀦留等。 本穴可用於催產，引產。
穴位配伍療法
月經不調，痛經，帶下：1.次髎 2.關元 3.三陰交
痛經不孕：1.次髎 2.商丘 3.湧泉
痔、肛裂：1.次髎 2.長強 3.承山