LOCATION
5 cun below the umbilicus. on the superior border of symphysis pubis, 0.5 cun lateral to Qugu (REN2).
Features
Meeting point of Kidney Meridian and Chong Vessel.
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 branches of the iliac hypogastric nerve, the inferior abdominal artery, and the external pudendal artery.
Indication
Urethritis，urinary retention，enuresis，spermatorrhea，asynodia，orchitis；pelvic inflammatory disease，oophoritis，amenorrhoea，irregular menstruation；keratitis. KI 11, KI 12, KI 13, KI 14 & KI 15 all intersect the Chong Mai and are useful as local points for abdominal a/or gynecological issues.
Combinations
Lumbago：KI 11 & SP 02.
Difficulty in urination，urethritis：KI 11 & SP 09 & SP 06.
Spermatorrhea，asynodia：KI 11 & BL 23 & CV 04.
Five types of stranguria：KI 16 & KI 11.
穴位
在下腹部，當臍中下5寸，前正中線旁開0.5寸。
特點
交會穴，通衝脈。
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
髂腹下神經的分支，腹壁下動脈，陰部外動脈。
適應症
尿道炎，尿潴留，遺尿，遺精，陽痿，睪丸炎；盆腔炎，附件炎，閉經，月經不調；角膜炎。
穴位配伍療法
氣滯腰痛不能立：1.橫骨 2.大都
小便不利，尿道炎：1.橫骨 2.陰陵泉 3.三陰交
遺精，陽痿：1.橫骨 2.腎俞 3.關元
五淋：1.肓俞 2.橫骨